Question

If a perimeter of a equilateral triangle is 180 cm what will be it's area

Answer 1

if the perimeter of a equilateral triangle is 180 cm , that means each side is of measure 60 cm.

area

$= \frac{ \sqrt{3} }{4} \times {side}^{2} \\ = \frac{ \sqrt{3} }{4} \times 60 \times 60 \\ = \sqrt{3} \times 15 \times 60 \\ = 900 \times \sqrt{3} \\ = 900 \sqrt{3}$

hope it helps you...

Answer 2

Answer:

Step-by-step explanation:

Perimeter of equilateral triangle =3s

180 =3s

So,

S=180/3

S=60cm

Area of equilateral triangle =√3/4*s*s

=√3/4*60*60

=90√3 cm2