Предмет: Геометрия, автор: katemor

Есть изображение. MK касательная к окружности. найдите BM ,

если MK = 8см BC = 12см.

Ответы

Автор ответа: pok626
3

Обозначим центр окружности буквой О. 
МВ= МО-ВО
ВС =2r 
r=12:2=6см
МО=√(ОК²+МК²)=√(36+64)=10
МВ=10-6=4см

Автор ответа: юлианна17г23щ
5

MK-BC=8СМ+12СМ=20, ПОТОМ  20СМ :2=10СМ

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