Question

the perimeter of an equiletral triangle is 30 cm. so it's side length is.​

Answer 1

Answer:

10 cm

Step-by-step explanation:

we know that perimeter of triangle is sum of three sides.

and it is an equilateral triangle so all sides would be same let them be x cm

so,

x + x + x = 30

3 x = 30

x = 10

Hence the length of the equilateral triangle is 10cm

Hope it helps u

Answer 2

Answer :

›»› The Side length of equilateral traingle is 10 cm.

Given :

• The perimeter of an equilateral triangle is 30 cm.

To Find :

• Side length of equilateral traingle.

Solution :

Let,

The side length of equilateral traingle be "x"

As we know that

→ Perimeter = Sum of all sides

→ 30 = x + x + x

→ 30 = 2x + x

→ 30 = 3x

→ x = 30/3

→ x = 10

Therefore,

• Side length of equilateral traingle = x = 10 cm.

║Hence, the Side length of equilateral traingle is 10 cm.║

Verification :

→ Perimeter = Sum of all sides

→ 30 = 10 + 10 + 10

→ 30 = 20 + 10

→ 30 = 30

Here, LHS = RHS

Hence Verified !