Question

An area of the equilateral triangle 20 root 3 and find its size

Answer 1

hey .
area of equi ∆ is (√3/4)*(side^2).
so eqating we get side as 5.

Answer 2

Area of triangle is$20\sqrt{3}$

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

$20\sqrt{3}=\frac{\sqrt{3}}{4} }a^2\\\\20\times4=a^2\\\\a=4\sqrt{5}$