Question

The semi-perimeter of an equilateral triangle is 60 cm.The area is-​

Answer 1

Step-by-step explanation:

Gevin that :-

s(semi-perimeter)=60

let all the side of the equilateral triangle be= 'x'

so, by using herons formula :-

=60√60x60x60x-Xx-Xx-X

=60x2x2x2x3x5x3x5x3x5

=1,620,000cm square