Question

Find the perimeter of equilateral triangle with side length 5cm​

Answer 1

We know,

Perimeter of equilaterial triangle is = 3x side units.

So,

The side of the Triangle = 5cm

As, it is equilaterial that means all sides of it is equal.

Now,

perimeter of the triangle = 3a units

= 3 x 5 cm

= 15 cm

→ The perimeter of the equilaterial triangle is 15CM.

Answer 2

GIVEN

a= 5 cm

( Here, a =side length of the equilateral triangle )

TO FIND

the perimeter of the equilateral triangle.

SOLUTION

An equilateral triangle is where all three sides are equal.

P=3 a

so,

   P=3×5

     =15

The perimeter of the equilateral triangle is 15 cm.