Предмет: Математика, автор: Аноним

Решить задачу , найти 1 сторону

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Автор ответа: ramit08
0
1)11-2=9
по теореме Пифагора найдем из  треугольника вверху:
гипотенуза=>√(9^2+12^2)=√(81+144)=√225=15
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