Question

Determine a altura de um triângulo equilátero de lado 18 cm

Answer 1

$h = \frac{x \: . \: \sqrt{3} }{2}$

$h = \frac{\backslash\!\!\!\!\!18 \sqrt{3} }{\backslash\!\!\!2}$

$h = 9 \sqrt{3}$

$\boxed{h ≈ 15,58 \: cm}$

Att. NLE Top Shotta