Предмет: Геометрия, автор: yuluavuktorovna

в параллелограмме АВСД диагонали пересекаются в точке О, К - середина стороны АВ, АК=3см,КО=4см. Найти периметр параллелограмма.

Ответы

Автор ответа: volodyk

0

параллелограмм АВСД, АК=КВ=3, АВ=3+3=6, ОК-средняя линия треугольника АВС=1/2ВС, ВС=2*ОК=2*4=8, периметр=2*(АВ+ВС)=2*(6+8)=28

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