Question

One side of an equilateral triangle is (2x + 5y) metres.Find its perimeter. *

Answer 1

Answer :

The perimeter of the triangle is 6x + 15y metres.

Step-by-step explanation :

To Find,

• The perimeter of the equilateral triangle?

Given that,

• One side of an equilateral triangle is 2x + 5y metres.

Solution,

Let us name the equilateral triangle as ∆ABC

As, it an equilateral triangle, then all sides are equal ( AB = BC = CA )

Therefore, perimeter of the triangle is

Perimeter of equilateral triangle = side a + side b + side c

∴ By putting the values,

Perimeter = ( 2x + 5 ) + ( 2x + 5 ) + ( 2x + 5 )

= 2x + 2x + 2x + 5x + 5x + 5x

= 4x + 2x + 10y + 5y

= 6x + 15y

∴ Hence, perimeter of the triangle is 6x + 15y metres.

Answer 2

Here is ur answer mate:

Given :

One side of the equilateral triangle is = (2x + 5y)

To Find :

•   Perimeter of the equilateral triangle

Formula of equilateral triangle :-

 3 × Side

Solution :

Perimeter of a equilateral triangle = 3 × side

Perimeter = 3 × (2x + 5y)

Perimeter = 6x + 15y  [Ans]