Предмет: Математика, автор: voinovnikita07

Периметр равнобедренного треугольника ACB с основанием AC равен 44 см, а периметр равностороннего треугольника ACD равен 15 см.
Найди длину боковой стороны равнобедренного треугольника.

Ответы

Автор ответа: NickCantBeEmpty

2

В равностороннем треугольнике ACD, как понятно из названия, все стороны равны между собой; следовательно, одна сторона будет равна трети от периметра, то есть 15см/3=5см.

В равнобедренном треугольнике ABC AC является основанием, следовательно, стороны AB и BC равны и составляют (P-AC)/2=(44см-5см)/2=39см/2=19,5см.

Ответ: 19,5см.

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