GRE
The length of diagonal AC
5
The area of ABCD
The area of CEFD
The ratio of the longer diagonal to the shorter diagonal in a parallelogram whose four sides are the same
2
The radius of the circle
The length of AC
$$\frac{y}{x}$$
$$\frac{x+y}{2}$$
The area of circle A
The area of circle B
The area of the square
20
The area of the smaller circle with radius r
The area of the region between these two concentric circles
The area of the shaded region
The area of the striped region
The circumference of the largest circle
The sum of the circumferences of the five smaller circles
25000 +道题目
201本备考书籍