Предмет: Геометрия, автор: artembro410

задание по геометрии

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Автор ответа: mawos

0

$4. S=\frac{d_1d_2}{2}=\frac{10*18}{2}= 90.\\5. S=\frac{ab}{2}= \frac{14*13}{2}=91. \\6. S=ah_a=12*9=108.$

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