Предмет: Математика, автор: кристал123456

Найдите третью сторону треугольника,если две его стороны равны 21 см и 32 см,соответственно,а периметр треугольника равен 100 см.

Ответы

Автор ответа: Гре4к1
0
100=21+х+32,отсюда х=100-53=47
Автор ответа: кристал123456
0
спосибо
Автор ответа: BlackEye1
0
Сначала находим сумму известных сторон треугольника: 1) 21+32=53 (см)
А затем вычитаем полученную сумму из периметра: 2) 100-53=47 (см)
Ответ: третья сторона треугольника равна 47 СМ
Автор ответа: кристал123456
0
спасибо ещё раз
Автор ответа: BlackEye1
0
не за что)))
Автор ответа: кристал123456
0
)))))
Автор ответа: кристал123456
0
ты в 5 классе
Автор ответа: BlackEye1
0
Нет. В 6
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