Ответ: 12, 144
Пошаговое объяснение:
[tex]P = 2*(9+15) = 48\\[/tex]
[tex]a = \frac{P}{4} = \frac{48}{4} = 12 \\ S = a*a = 12*12 = 144[/tex]
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Ответ: 12, 144
Пошаговое объяснение:
[tex]P = 2*(9+15) = 48\\[/tex]
[tex]a = \frac{P}{4} = \frac{48}{4} = 12 \\ S = a*a = 12*12 = 144[/tex]