Question

1.
A traffic signal board, indicating SCHOOL AHEAD", is an equilateral triangle with
side 'a'. Find the area of the signal board, using Heron's formula. If its perimeter is
180 cm, what will be the area of the signal board?​

Answer 1

Answer:

heron formula is root of s(s-a)(s-b)(s-c)

Step-by-step explanation:

s is half of the perimeter

s=180/2=90

let a=b=c is equal to a

hence area is root of 90(90-a)(90-a)(90-a)