Question

please answer the answer

Answer 1

its the answer.hope it may help you

Answer 2

Answer:

Step-by-step explanation:

Given an equilateral triangle of perimeter 180cm.

Let side be a.

Perimeter of equilateral triangle is 3a.

180cm=3a

60cm=a.

3a/2

180/2

90cm

Heron's formula =imAge