GRE
x
y
$$\frac{a}{b}$$
$$\frac{1}{2}$$
$$\frac{1}{3}$$PR
PS
The area of ABCD
The area of EFGB
The side of the square
The side of the triangle
The area of trapezoid ABCD
The area of △EGH
The area of the circle
One-half of the area of the square
$$\frac{π}{4}$$
$$\frac{l}{n}$$
$$\frac{π}{2}$$
25000 +道题目
198本备考书籍