Mathematics第 51 / 120 题
What is the perimeter of a square with a side length of 7 inches?
a.14 inches
b.21 inches
c.28 inches
d.49 inches
解析
A square has four equal sides, so the perimeter equals 4 times the side length. Multiplying 4 by 7 gives a perimeter of 28 inches.
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