Question

if the perimeter of an equilateral triangle is 36 CM calculate it's area and height

Answer 1

GIVEN-

Perimeter of equilateral triangle = 36 cm

TO FIND -

area of triangle =??

SOLUTION -

Let the side of equilateral triangle be x

perimeter of equilateral triangle = 3x

36=3x

x=12 cm

we know that

area of equilateral triangle = root3/4×side^2

=root3/4×144

=36root3

so area of equilateral triangle is 36 root3