试题与答案

已知⊙O的半径为10,弦AB的长为103,点C在⊙O上,且C点到弦AB所在的直线

题型:填空题

题目:

已知⊙O的半径为10,弦AB的长为10
3
,点C在⊙O上,且C点到弦AB所在的直线的距离为5,则以O,A,B,C为顶点的四边形的面积是______.

答案:

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