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  3. What is the perimeter, in meters, of a rectangular playground 24 meters wide tha

What is the perimeter, in meters, of a rectangular playground 24 meters wide tha

游客2025-02-24  70
问题 What is the perimeter, in meters, of a rectangular playground 24 meters wide that has the same area as a rectangular playground 64 meters long and 48 meters wide?
选项 A、112
B、152
C、224
D、256
E、304
答案 E
解析 The area of the rectangular playground that is 64 meters long and 48 meters wide is(64)(48)= 3,072 square meters. The second playground, which has the same area, is 24 meters wide and 3,072/24= 128 meters long. Therefore, the perimeter of the second playground is(2)(24)+(2)(128)= 304 meters. The correct answer is Choice E.
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