Предмет: Геометрия, автор: Mint1999

Помогите решить задачу. Фото выше.

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Автор ответа: ivan3947

1

т.к треугольник равнобедренный => АВ=АС=>МВ=ВК, АМ=СК=> АВ=АМ+ВМ
АМ=5
ВМ=8
5+8=13

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