Предмет: Геометрия, автор: maklakdmitrij11

5. Периметр равнобедренного треугольника равен 40 см, ос-
нование треугольника в 2 раза меньше боковой стороны.
Найдите основание треугольника.​

Ответы

Автор ответа: egorbrybin
3

Ответ:

8

Объяснение:

AB, BC - боковые стороны, AC основание

Пусть х-АС, тогда АВ=ВС (по определению равнобедренного треугольника)-2х. По условию периметр равен 40.

х+2х+2х=40

х=8

maklakdmitrij11: спасибо
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