Question

One side of an equilateral triangle is 4cm. Find its area by Heron's Formula.

Answer 1

Thats your answer of your question

Answer 2

s=1/2×(a+b+c)
=1/2×(4+4+4)=6
heron's formula =
$\sqrt{s(s - a)(s - b)(s - c)}$
$\sqrt{6(6 - 4)(6 - 4)(6 - 4)}$

$4 \sqrt{3}$