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  3. If the area of a square with sides of length 8 centimeters is equal to the area

If the area of a square with sides of length 8 centimeters is equal to the area

游客2024-01-14  70
问题 If the area of a square with sides of length 8 centimeters is equal to the area of a rectangle with a width of 4 centimeters, what is the length of the rectangle, in centimeters?
选项 A、4
B、8
C、12
D、16
E、18
答案 D
解析 The square has an area of 8×8=64, so the length of the rectangle is 64/4=16 (the area of a rectangle is its width times its length).
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