Question

Areá de um triângulo equilátero mede 16√3 m².Quando mede o lado ? Quando mede a altura?

Answer 1

$A_t = \frac{l^2 \sqrt{3} }{4}\\\\\ 16 \sqrt{3} = \frac{l^2 \sqrt{3} }{4}\\\\ l^2 = 64\\\\ \boxed{l = 8\ m}\\\\\\ h = \frac{l \sqrt{3} }{2}\\\\\ h = \frac{8 \sqrt{3} }{2}\\\\\ \boxed{h = 4 \sqrt{3}\ m}$