Question

Помогите ,,,,,,,,,,,,,​

Answer 1

Ответ:

1) S=1/2*a*h= 1/2*5.5*9=49.5

2) h=S/(a*1/2)= 17.5/(5*1/2)=17.5/2.5=7

3) a=S/(h*1/2)==23.5/(10*1/2)=23.5/5=4.7