Question

An equilateral triangle has each of its side 60 mm long.Find its area

Answer 1

$\huge\mathfrak\blue{\underline{\underline{Solution}}}$

Sides of equilateral triangle. = 60mm

Formula of area of equilateral∆ is:

$\frac{ \sqrt{3} }{4} ( {a})^{2}$

Applying this Formula;

$= \: \frac{ \sqrt{3} }{4} \times ( {60)}^{2}$

=> 1558.85 mm²

hence required area is 1558.85 mm²

Answer 2

answer=900under root 3