Question

Calculati aria unui triunghi echilateral cu perimetrul egal cu 4 radical de 3.

Answer 1

s=Rad3/4*l^2
l=per/3=4rad3/3
s=rad3/4*16/3=4rad3/3

Answer 2

P = 3 · l = 4√3 => l = $\frac{4 \sqrt{3} }{3}$

A = $\frac{l^{2} \sqrt{3} }{4} = \frac{16*3* \sqrt{3} }{9*4} = \frac{48 \sqrt{3} }{36} = \frac{4 \sqrt{3} }{3}$