Предмет: Геометрия, автор: dubininaaliaksandra

помогите решить задачу по геометрии про окружность

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Ответы

Автор ответа: zmeura1204

Ответ:
ДугаАВ=3π

Решение:
∆АВО- прямоугольный, равнобедренный треугольник.
Проверяем по теореме Пифагора:
АВ=√(АО²+ОВ²)=√(6²+6²)=6√2
∠АОВ=90°- центральный угол
Сдуги АВ=2πR*90°/360°=
=2π*6*1/4=3π

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