解答
解答
+1
十进制
求解步骤
Given:
给定 的圆面积:
流行的例子
The diameter of a circle is 17 cm. Find its 周长 in terms of pipi.What is the volume of a sphere with a 半径 of 34.2 m, rounded to the nearest tenth of a cubic meter?The 半径 of a circle is 7 in. Find its area in terms of pipi.What is the volume of a sphere with a 半径 of 3 m, rounded to the nearest tenth of a cubic meter?A square sandbox has sides that are 9 feet long. What is the sandbox's 面积?