2. 外语
  3. In the figure above, the area of the circular region with center O is 16π, if AB=AC, what is the length of AB?

In the figure above, the area of the circular region with center O is 16π, if AB=AC, what is the length of AB?

admin2022-05-18  37
问题 In the figure above, the area of the circular region with center O is 16π, if AB=AC, what is the length of AB?
选项 A、8
B、4
C、
D、2π
E、无法计算
答案C
解析 πr2=16π，所以r=4，由于∠BAC=90°，所以BC为圆的直径，BC=8，AB=，因此C为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/UYkO777K
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)