Question

Two sides of a triangle are 29.8cm and 13.6cm.If the perimeter of the triangle is 57.9cm,find the third side

Answer 1

I hope you find the solution easy

Answer 2

Given:-

• Perimeter of triangle ,P = 57.9cm

• 1st side of triangle ,S1 = 29.8 cm

• 2nd Side of triangle ,S2 = 13.6 cm

To Find:-

• Third side of the triangle ,S3

Solution:-

As we know that the perimeter of triangle is the sum of all 3 sides.

→ Perimeter of Triangle = S1 +S2 +S3

→ P = S1 +S2 +S3

Substitute the value we get

→ 57.9 = 29.8 + 13.6 + S3

→ 57.9 = 43.2 + S3

→ S3 = 57.9 - 43 .2

→ S3 = 14.7 cm

∴ The third side of triangle is 14.7 cm.