解答
解答
求解步骤
Translate the problem into an equation:
求解
流行的例子
The 半径 of a circle is 17 ft. Find its area in terms of pipi.the sum of two numbers is 39. Twice the frist number plus 3 times the second number is 101what is the length of a rectangle with a width of 12in. and 面积 of 66 in^2?A circle has a diameter of 6.3 meters. Find its 周长. (Use pi=3.14.)our bracket a number subtracted by two