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 20 cm. Find its 周长 in terms of pipi.The 周长 of a circular field is 188.4 yards. What is the diameter of the field? Use 3.14 for pi and do not round your answerFind a number such that 1/4 of the number is 50 less than 2/3 of the number.a coat has been reduced to 51.00 in a 15% off sale what was the original price of the coatThe 周长 of a circle is 5pi m. What is the area, in square meters? Express your answer in terms of pipi.