Question

ajuda nessa questão 2 pfv ​

Answer 1

Resposta:

$x=\frac{80}{h}$

Explicação passo-a-passo:

$A=\frac{(B+b)*h}{2}=\\\\320=\frac{(6x+2x)*h}{2}=\\\\640=(8x)*h\\h(8x)=640\\\frac{h(8x)}{h*8}=\frac{640}{h*8}\\\\x=\frac{640}{h*8}\\\\x=\frac{80}{h}$