绍兴是著名的桥乡，如图，圆拱桥的拱顶到水面的距离CD=8m，桥拱半径OC=5m，则水面宽AB=_刷题宝

题干

绍兴是著名的桥乡，如图，圆拱桥的拱顶到水面的距离CD=8m，桥拱半径OC=5m，则水面宽AB=（）

A：4 m

B：5 m

C：6 m

D：8 m

上一题下一题 0.0难度选择题更新时间:2019-05-21 02:11:14

答案(点此获取答案解析）

D

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