Предмет: Геометрия, автор: ilanevejkin29

№215. 20. Какие из этих утверждений верны?
1.Площадь трапеции равна произведению основания трапеции на высоту.
2.Площадь треугольника меньше произведения двух его сторон.
3.В любой четырёхугольник можно вписать окружность.

Ответы

Автор ответа: Rivettly

0

(2,3)

Объяснение:

объяснение можно найти в учебнике геометрии за 8 класс

Rivettly: насчет окружности

Rivettly: это ты можешь сделать сам

Rivettly: 2 - т. к. (а+в):2*ha

Rivettly: 3 т. к. там закон в интернете посмотри

Rivettly: он большой просто

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