Question

Observe o triângulo abaixo e dê o valor de sua área.

Answer 1

$\large\boxed{\begin{array}{l}\rm A=\dfrac{b\cdot h}{2}\\\\\rm b\longrightarrow base\\\rm h\longrightarrow altura\\\rm A=\dfrac{6\cdot3}{2}\\\\\rm A=\dfrac{18}{2}\\\\\rm A=9\,cm^2\end{array}}$