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人気の例
The radius of a 円 is 17 ft. Find its area in terms of pipi.the sum of two numbers is 39. Twice the frist number plus 3 times the second number is 101what is the length of a rectangle with a width of 12in. and 面積 of 66 in^2?A circle has a diameter of 6.3 meters. Find its 円周. (Use pi=3.14.)our bracket a number subtracted by two