Question

two sides of a triangle are 12cm and 14cm. the perimeter of the triangle is 36cm. length of third side is
​

Answer 1

Answer:

Perimeter of triangle is sum of all sides

First side=12cm

Second side=14cm

Perimeter =36cm

So we can write

36=12+14+x

36=26+x

36-26=x

10=xAns

Hopefully this will help you

Answer 2

Answer:

★ 10 Cm ★

Step-by-step explanation:

Given:

• Two sides of a triangle is 12 cm and 14 cm
• Perimeter of triangle is 36 cm

To Find:

• Length of the third side of the triangle

Solution: Let the length of third side be x cm.

★ Perimeter of ∆ = Sum of all sides ★

$\small\implies{\sf }$ 36 = 12 + 14 + x

$\small\implies{\sf }$ 36 = 26 + x

$\small\implies{\sf }$ 36 – 26 = x

$\small\implies{\sf }$ 10 = x

Hence, The length of third side will be 10 cm

_______________

★ Check ★

→ Sum of all sides = 36

→ 12 + 14 + 10 = 36

→ 36 = 36 LHS = RHS