Lời Giải
Lời Giải
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Số thập phân
Các bước giải pháp
Given:
Bán kính đường tròn đã cho
Diện tích hình tròn đã cho
Ví dụ phổ biến
the sum of a number and 12 is 42The sum of two numbers is 37. One number is 9 less than the other. Find the numbers.The bán kính of a circle is 20 cm. Find its area in terms of pipiIn sắp xếp to pay for college, the parents of a child invest 10,000 in a bond that pays 8% interest compounded semiannually. How much money will there be in 21 years? Round your answer to the nearest cent.The radius of a circle is 15 cm. Find its chu vi in terms of pi.