Question

Observe o trapézio abaixo. Determine A expressão que representa sua área e marca a opção correta​

Answer 1

$\boxed{\begin{array}{l}\underline{\rm \acute Area~do~trap\acute ezio}\\\huge\boxed{\boxed{\boxed{\boxed{\sf A=\dfrac{(B+b)\cdot h}{2}}}}}\\\sf B\longrightarrow base~maior\\\sf b\longrightarrow base~menor\\\sf h\longrightarrow altura\\\tt dados\begin{cases}\sf B=2x+5\\\sf b=x+4\\\sf h=3\end{cases}\\\underline{\rm soluc_{\!\!,}\tilde ao\!:} \\\sf A=\dfrac{(2x+5+x+4)\cdot3}{2}\\\\\sf A=\dfrac{(3x+9)\cdot3}{2}\\\\\sf A=\dfrac{9x+27}{2}\\\\\sf corrija~o~gabarito.\end{array}}$