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
The sum of two numbers is 28 and their 差集 is 4. What are the numbers?The product of two consecutive positive integers is 20. Find the value of the lesser integer.Lydia invested 83,000 in an account paying an interest rate of 6.7% compounded monthly. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach 210,100?2 years ago, Owen won some money in the lottery and put it in a bank account that earns 15% interest compounded annually. If Owen currently has 400.00 in the bank account, how much interest has he earned?The 半径 of a circle is 5 in. Find its area in terms of pipi.