Question

mim !!!ajudem aeeee!!!@

Answer 1

$area = \frac{(base \: mair +base \: menor ) \times altura}{2} \\ 384 = \frac{(2x + x) \times 2x}{2} \\ 384 = \frac{3x \times 2x}{2} \\ 384 = \frac{6x}{2} \\ 384 = 3x \\ x = \frac{384}{3} \\ x = 128$
Espero ter ajudado!!! Bons estudos!!!