Решите задачу: S ABCD = 4,8м². P ABCD

Видимо это квадратS=a²=4.8 м.

July 2022 1 9 Report

Решите задачу: S ABCD = 4,8м². P ABCD - ?

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Indecastle Видимо это квадрат
S=a²=4.8
$a = \sqrt{ \frac{48}{10} } = 4\sqrt{ \frac{3}{10}} = 4* \frac{ \sqrt{3} \sqrt{10} }{10} = 2* \frac{ \sqrt{30} }{5} 
$
$P = 4a = 4*2*\frac{ \sqrt{30} }{5} = 1.6\sqrt{30}$ м.

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