解答
解答
求解步骤
Given:
给定 的圆半径:
给定 的圆面积:
流行的例子
3% of what number is 18nine less than the product of 3 and a number is equal to 8given a standard 52 card deck you randomly choose pick two cards what is the probability both cards are clubsA mother’s age is five more than four times her daughter’s age. If their combined age is 45 years, find the ages of the mother and her daughter.what is the exact area of a circle with 6 半径