Question

The perimeter of an equilateral triangle is 120 cm. Find each side of the equilateral triangle.​

Answer 1

Answer:

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Step-by-step explanation:

let the side of equilateral triangle be x

x +x+x = 120

3x = 120

x = 120/3

x = 40

each side of the equilateral triangle = 40 cm

Answer 2

Answer:

Hence, value of side of equilateral triangle having perimeter 120 cm will be $Side = \frac{Perimeter}{3} = \frac{120}{3}=40\:cm$

Step-by-step explanation:

In context to question asked,

We have to determine the side of the equilateral triangle.

As per question,

We have,

Perimeter of equilateral triangle = 120 cm

As we know that,

Equilateral triangle is that type of triangle whose all sides are equal.

Perimeter is nothing but the sum of length of outer borders of the triangle.

So, for determining the perimeter of equilateral triangle,

We will add all the outer faces of the triangle.

So, we will use the formula $Perimeter = 3 \times sides$ for determining the perimeter of triangle.

So, for determining the side of triangle, we will put the value of perimeter of equilateral triangle in above formula and divide it by 3.

Thus we will get,

$Side = \frac{Perimeter}{3} = \frac{120}{3}=40\:cm$