《(完整word版)三线八角导学案.pdf》由会员分享,可在线阅读,更多相关《(完整word版)三线八角导学案.pdf(8页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、1“三线八角”导学案【预习导学】1、在同一平面内三条直线之间有什么样的位置关系?2、思考并填空:(1)如下图所示,直线 AB和直线 CD被第三条直线EF所截,构成的 1 与 5 在两条被截线(AB、CD)的,在截线 EF的 .这样位置的角称为 .构成的 3 与 5 在两条被截线(AB、CD)的,在截线 EF的 .这样位置的角称为 .构成的 3与 6 在两条被截线(AB、CD)的,在截线 EF的 .这样位置的角称为 .3、图中还有其他同位角吗?图中还有其他内错角吗?图中还有其他同旁内角【合作探究】1三种角产生的条件是什么?2在“三线八角”中,判断两角之间的关系时应先找,再找另外两直线,然后根据角
2、的位置决定是哪一种角.3.三种角的位置特征及其图形结构特征:归纳:(1)角的名称角的位置特征图形结构特征同位角内错角同旁内角分小组讨论:1如图:1 与 2 是同位角吗?2如图:1 与2 是内错角吗?3如图:1 与 2 是同旁内角吗?精品资料-欢迎下载-欢迎下载 名师归纳-第 1 页,共 8 页 -2(1)识别这三类角首先要抓住“三条线”,即:哪两条直线被哪一条直线所截(2)抓住“截线”,截线的同侧有哪些角、从中找同位角和同旁内角,在截线的两侧找内错角【反思拓展】1.如图,直线DE、BC被直线 AB所截,1 与2 是角,1 与 3 是角,1 与4 是角.第 1 题第 2 题2如图,1 和 2 是
3、角;3 和4 是角;5 和6 是角.3根据图形按要求填空:(1)1 与 2 是直线和被直线所截而得的 .(2)1 与 3 是直线和被直线所截而得的 .(3)3 与 4 是直线和被直线所截而得的 _ _.(4)2 与 4 是直线 _和被直线所截而得的 .(5)4 与 5 是直线 _和_被直线 _所截而得的 _.第 3 题4变式练习,揭露概念本质属性(1)如图 2-32,说出以下各对角是哪两条直线被第三条直线所截而得到的什么角?1 与 2 是被所截而得到的一对角2 与 4 是被所截而得到的一对角2 与 3 是被所截而得到的一对角(2)如图 2-33,找出下列图中的同位角,内错角和同旁内角精品资料-
4、欢迎下载-欢迎下载 名师归纳-第 2 页,共 8 页 -文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U
5、3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10
6、U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S1
7、0U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S
8、10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6
9、S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M
10、6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D103 答:同位角有
11、:;内错角有:;同旁内角有:(3)如图 2-34,指出图中 1 与2,3 与 4 的关系答:1 与 2 是,3 与 4 是【检测反馈】1.如下图(1)所示,直线DE、BC被直线 AB所截,问1424与,与,34与各是什么角?A D 1 2 3 E 4 B C 2、指出图2-39(1)中,2 和 5 的关系是 _;3 和 5 的关系是 _;2 和_是直线 _、_被_所截,形成的同位角;3、如图 2-39(3),用数字标出的八个角中同位角有 _ _ _;内错角有 _ _;同旁内角有 _ _;4、如图,填空:精品资料-欢迎下载-欢迎下载 名师归纳-第 3 页,共 8 页 -文档编码:CT3M6S10
12、U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S1
13、0U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S
14、10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6
15、S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M
16、6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3
17、M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT
18、3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D104(1)1 和 2 是直线和直线被第三条直线所截而成的角。(2)2 和 3 是直线和直线被第三条直
19、线所截而成的角。(3)4 与 A 是直线和直线被第三条直线所截而成的角。“三线八角”导学案(第二课时)预习案1.填空(1)如图 2-43,直线 AB、CD被 DE所截,则 1 和是同位角,1 和是内错角,1和是同旁内角,如果1=5.那么 1 3.(2)上题中(图2-43)如果 5=1,那么 1=3 的推理过程如下,请在括号内注明理由:5=1()又 5=3()1=3()(3)如图2-44,1 和 4 是 AB、被所截得的角,3 和 5是、被所截得的角,2 和5 是、所截得的角,AC、BC被 AB所截得的同旁内角是 .(4)如图2-45,AB、DC 被 BD 所截得的内错角是,AB、CD 被 AC
20、 所截是的内错角是,AD、BC 被 BD 所截得的内错角是,AD、BC 被 AC 所截得的内错角是 .精品资料-欢迎下载-欢迎下载 名师归纳-第 4 页,共 8 页 -文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文
21、档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10
22、文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D1
23、0文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D
24、10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2
25、D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O
26、2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5
27、O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D105 探究案探究点一:同位角的判断例 1:如图,1 与3 是同位角吗?此时,截线和被截线分别是什么?2 与 4 是同位角吗?为什么?想一想:1 还有其他同位角吗?此时,截线和被截线又分别是什么?探究点二:内错角的判断例 2:如图,图中分别有哪几对内错角?探究点二:同旁内角的判断例 3;如图,图中分别有哪几对同旁内角?训练案1、选择题(1)如图 2-46,1 与 2 是同位角的个数有()A.1 个 B.2个 C.3个 D.4个(2)如图 9,在指明的角中,下列说法不正确的是()(A)同位角有2 对;(B
28、)同旁内角有5 对;(C)内错角有4 对;(D)1 和 4 不是内错角。(3)如图 10,则图中共有()对内错角精品资料-欢迎下载-欢迎下载 名师归纳-第 5 页,共 8 页 -文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O
29、2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5
30、O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G
31、5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7
32、G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P
33、7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6
34、P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE
35、6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D106 10756894321(1)(A)3;(B)4;(C)5;(D)6。(4)如图 2-47,()是内错角A.1 和 2 B.3 和4 C.2 和 3 D.1 和 4(5)如图 2-48,图中的同位角的对数是()A.4 B.6 C.8 D.12 2、.如图 2-49,已知 1 的同旁内角等于5728,求 1 的内错角的度数.3.判断正误:如图 239(5),1 和 B是同位角;2 和 B是同位角;()2 和 C是内错角;()EAD和 C是内错角;()5如图 239(6),填空 1 和 4
36、是;1 和 5 是;2 和 7 是;1 和 4 是;1 和 2 是;6、判断:(1)2 和 8 是对顶角.()(2)2 和 4 是同位角.()(3)1 和 3 是同位角.()(4)9 和 10 是同旁内角()(5)1 和 7 是同旁内角.()(6)2 和 10 是内错角.()检测案1、如图,图中1 与 2 是同位角的是()1 2 1 2 2 1 1 2 精品资料-欢迎下载-欢迎下载 名师归纳-第 6 页,共 8 页 -文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编
37、码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档
38、编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文
39、档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10
40、文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D1
41、0文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D
42、10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2
43、D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D107(2)A B C D 2、如图,下列判断正确的是()A 1 和 5 是同位角B 2 和 6 是同位角C 3 和 5 是内错角D 3 和 6 是内错角A、B、C、D、3、如图,与 C是同旁内角的有()个.A.2 B.3 C.4 D.5 4、如图,1
44、的同位角是 _,1 的内错角是 _,1?的同旁内角是 _.补充练习1、如图1,ACBC,CD AB,垂足为D,图中共有 _个直角,它们是 _,图中线段 _的长表示点C到 AB的距离,线段 _的长表示点A到 BC的距离.2、如图 2,请你写出一组内错角:_;一组同位角_;一组同旁内角_;DCBA4521l1l23(1)(2)(3)3、如图 3,当剪子口AOB 增大 15时,COD 增大_。4、如图 4,计划把河水引到水池A中,先引AB CD,垂足为B,然后沿AB开渠,能使所开的渠道最短,这样设计的依据是_。5、如图 5 有一个与地面成30角的斜坡,现要在斜坡上竖一电线杆,当电线杆与斜坡所成的角=
45、精品资料-欢迎下载-欢迎下载 名师归纳-第 7 页,共 8 页 -文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M
46、6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3
47、M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT
48、3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:C
49、T3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:
50、CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码:CT3M6S10U3R10 HV3P3V6V5C9 ZE6P7G5O2D10文档编码