해법
해법
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A.T.Q.:
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The 원둘레 of a circle is 10pi meters. What is the radius?Mr. Reyes is 4 times as old as his son. In 20 years, Mr. Reyes will be twice as old as his son. Find their present age.the sum of 3 consecutive integers is 132.find the integersThe diameter of a circle is 12 ft. Find the 원둘레The product of two consecutive odd integers is 255. Find the integers.