Предмет: Геометрия, автор: Аноним

помогите срочно нужно решить!!!!​

Приложения:

Ответы

Автор ответа: zmeura1204
2

Дано:
Треугольник
а=4см
b=13см
с=15см
h(a)=?
Решение:
S=√(p(p-a)(p-b)(p-c))
p=(a+b+c)/2=(4+13+15)/2=32/2=16см
S=√(16(16-4)(16-13)(16-15))=

=√(16*12*3*1)=4*2*3=24см²

S=a*h/2;
h=2*S/a=2*24/4=12см.
Ответ: 12см


zmeura1204: Пожалуйста.
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Предмет: Математика, автор: Аноним