Question

using Heron's formula, find the area of an equilateral triangle if it's perimeter is 360 cm​

Answer 1

Answer:

p=360 side =120

s=p/2=180

A=√180×60×60×60=√21600×180

=√3600×*60*36*5

=60*6√300=360√25×12=360×5√12=1800×2√3

=3600×1.732

=

6235.38