Lời Giải
Lời Giải
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Given:
Chu vi hình tròn đã cho
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The bán kính of a circle is 20 ft. Find its area in terms of pipiFind the bán kính of a circle with an area of:615.75 square kilometers.The sum of three consecutive even numbers is 48. What are the smallest of these numbers?The chu vi of a circle is 50.24 meters. What is the area of the circle? Use 3.14 for piOne number is nine less than another. Their sum is twenty-seven. Find the numbers.