Предмет: Геометрия, автор: Drakula007

В равностороннем треугольнике АВС проведены средние линии. Найдите периметр получившегося треугольника,если АВ=12см.

Ответы

Автор ответа: Anetton

Т к треугольник равносторонний, следовательно средние линии его равны. А средняя линия равна половине основания. То есть 12:2=6. А чтобы найти периметр просто 6+6+6=18 см

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