Question

Perimeter of an equilateral triangle is x\3cm. Each equal side= ?

Answer 1

Perimeter = x/3;
Since all the sides are equal,
Length of each side = Perimeter/3
= (x/3)/3
= x/9 cm (Ans).

Answer 2

Let length of sides of an equilateral triangle be y

Now, perimeter is the addition of all the sides.

y+y+y=x/3
3y=x/3
y=x/9

Thus,the length of all the side is x/9.