Question

a traffic signal board indicating School ahead is an equilateral triangle with side a find the area of single board using heroines formula if the perimeter is 180 cm is what will be the area of the signal board​

Answer 1

here is the answer of your question mate. please mark it branliest. please please please please

Answer 2

Answer:

Step-by-step explanation:

Equilateral ∆ means all sides r equal

So,let sides of ∆to be X

X+X+X=180

3X=180

X=60

Semi-perimeter=60+60+60/2

180/2

90

USING HERON'S formula

√s(s-a)(s-b)(s-c)

√90(90-60)(90-60)(90-60)

√90*30*30*30

√2*3*3*5*2*3*5*2*3*5*2*3*5

2*3*2*3*5*5√3

900√3cm^2 is ANS

Note:it's herons formula not heroines formula

Hahaha lol