一道英语写的数学题14. In the figure above, the length of minor arc AB is /2 and the area of the shaded region is 1/6 the area of the entire circle. What is the radius of a circle that is ? the area of the above circle?(A) 9(B) 9/8(C) 3/4(D) (9/8)2(E) 9/8图就不给了 就是一个圆形上面有个小阴影
问题描述:
一道英语写的数学题
14. In the figure above, the length of minor arc AB is /2 and the area of the shaded region is 1/6 the area of the entire circle. What is the radius of a circle that is ? the area of the above circle?
(A) 9
(B) 9/8
(C) 3/4
(D) (9/8)2
(E) 9/8
图就不给了 就是一个圆形上面有个小阴影
答
没有图,无法得到所选项
答
在上述图形中,劣弧AB的长度是1/2,阴影部分面积是圆面积的1/6,那么圆的半径是多少?上述圆的面积是多少?(阴影看不到,不知道说的是什么)