Question

If the sides of an equilateral triangle is l, then express the perimetre of triangle in term of l.​

Answer 1

Answer:

3*l

Step-by-step explanation:

An equilateral triangle is having all 3 sides equal so perimeter is l+l+l=3*l

Answer 2

Answer:

By Area of heron's formula

Step-by-step explanation:

3l=180

L=180/3

L=60

Semi perimeter =60+60+60/2

=90

Area=underoot s×s-a*s-b*s-c

90*30*30*30

90root3