Answer:
with what?? is there supposed to be a pic or sum ??
Step-by-step explanation:
(a is size of side of triangle)
the perimeter of equilateral triangle =3a
or, 36=3a
Thus, a = 13cm
area of equilateral triangle
=√3/4*(a^2 )
=√3/4*(13^2)
=73cm^2
rr<span>²r=58r<span>²
