Предмет: Геометрия, автор: Аноним

помогите пожалуйста. срочно. 50 баллов... с чертежом!!!!!
пожалуйста только без любительй бесплатных баллов! будет нарушение !
корона с меня...))))​

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Ответы

Автор ответа: Пеппер
2

Объяснение:

Имеем равнобедренный треугольник, где  а=в=10 см,  с=12 см, тогда

R=abc/4S

S=√р(p-a)(p-b)(p-c)=√(16*6*6*4)=√2304=48 cм² (р - полупериметр)

R=(10*10*12)/192=1200/192=6,25 см

r=S/p=48/16=3 см

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