Question

Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is it’s third side?

Answer 1

Question :-

Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is it’s third side?

Answer :-

10cm is the third side of the triangle.

Solution :-

Given :- Two sides of a triangle are 12cm and 14cm and perimeter of the triangle is 36cm.

Formula :- a + b + c = perimeter

12 + 14 + c = 36

26 + c = 36

c = 36 - 26

c = 10

Answer 2

$\bf{\huge{\underline{\boxed{\sf\purple{Answer:\:10\:cm}}}}}$

$\rule{100}2$

Given :

• Two sides of a Δ = 12 cm and 14 cm
• It's perimeter = 36

To Find :

• Third side

Solution :-

∵ Perimeter of Δ = sum of all three sides.

So,

12 + 14 + third side = 36

⇒ 26 + third side = 36

⇒ third side = 36 - 26

∵ third side = 10 cm.

Hence,

Third side of the triangle is 10 cm.

$\rule{200}2$