Предмет: Геометрия, автор: eliangelskaya

один катет прямоугольного треугольника равен 20 см а гипотенуза на 8 см больше другого катета. найдите площадь треугольника

Ответы

Автор ответа: LanMao

20(в квадрате)+x(в квадрате)=(x+8)(в квадрате)
400+x(в квадрате)=x(в квадрате)+16x+64
400-64=16x
336:16=21
второй катет равен 21
кипотенуза равна 29

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