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1、(时间:30 分,满分 60 分)班级姓名得分1(5 分)一个圆锥的侧面展开图是半径为6 的半圆,则这个圆锥的底面半径为()A 1 5 B 2 C 2 5 D3 2(5 分)已知圆锥的母线长为3,底面的半径为2,则圆锥的侧面积是()A.4B.6C.10D.123(5 分)已知扇形的圆心角为60,半径为 1,则扇形的弧长为()4(5 分)圆锥的母线长为4,底面半径为 2,则此圆锥的侧面积是A.6B.8C.12D.165(5 分)在半径为 2 的圆中,弦 AB 的长为 2,则弧 AB 的长等于()6(5 分)圆心角为 120,弧长为 12的扇形半径为()A6 B9 C18 D36 7(5 分)已知
2、扇形的半径为3cm,此扇形的弧长是2cm,则此扇形的圆心角等于度,扇形的面积是.(结果保留)8(5 分)若扇形的圆心角为60,弧长为 2,则扇形的半径为9(5 分)圆锥底面圆的半径为3m,其侧面展开图是半圆,则圆锥母线长为.10.(15 分)如图,PA,PB 分别与 O 相切于点 A,B,APB=60,连接 AO,BO(1)弧 AB 所对的圆心角 AOB=;(2)求证:PA=PB;(3)若 OA=3,求阴影部分的面积文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码
3、:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编
4、码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档
5、编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文
6、档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4
7、文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y
8、4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4文档编码:CH5A10G6B5J5 HB4K4G1X10M6 ZD10J9M8D8Y4