Question

if the permiter of an equilateral traingle 60cm then what it's area?
200√2cm^2
100√2cm^2
100√3cm^2
200√3cm^2​

Answer 1

Step-by-step explanation:

answer is in pic....

(perimeter of triangle is 3a because all the sides are equal)

(we took each side as a, so 3 sides=3×a=3a)