最終更新日：2024/07/30
The semiperimeter of a rectangle is equal to half the sum of its length and width.
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The semiperimeter of a rectangle is equal to half the sum of its length and width.
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The semiperimeter of a rectangle is equal to half the sum of its length and width.
The semiperimeter of a rectangle is equal to half the sum of its length and width.
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