Question

a area de um triangulo de base 12 cm e altura de 4 cm é?

Answer 1

a=b*h /2

a= 12*4 /2
a= 48/2
a= 24 cm²

Answer 2

fórmula .

$S= \frac{b.h}{2}$

Aplicando :

$S= \frac{12.4}{2}$

$\boxed{\boxed{S=24~cm^2}}$