Question

The length of an equilateral triangle is $6cm$. Find the area of the triangle.

Answer 1

Given that $a=6$

We know that Area of equilateral triangle $\left(A\right)$

$\Rightarrow A=\frac{\sqrt{3}}{4}{a}^2$

$\Rightarrow A=\frac{\sqrt{3}}{4}(6{)}^2$

$\Rightarrow A=9\sqrt{3}$