Предмет: Математика, автор: REDNEWSHOW

периметр прямоугольникаравен 36 см,длина одной стороны-10 см. найдите длину смежной стороны.

Ответы

Автор ответа: dashka20081

0

P=2(a+b)
36=2(a+10)
36=2a+20
2a=36-20
2a=16
a=8 см

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111 Choose the right variant:
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3. are
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4. be
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2. was there
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