Question

two sides of a triangle are 8 cm and 11 cm and perimeter of triangle is 32 cm find the length of third side

Answer 1

Hey mate !!

Here's the answer !!

Perimeter = Sum of sides of triangle

Sides = 8, 11, x 

Let the unknown side be x 

So, Perimeter = 32 cm

Hence, 32 = 8 + 11 + x

32 = 19 + x

=> x = 32 - 19 = 13 cm

Hence the third side of the triangle is 13 cm.

Hope my answer helped !!

Cheers !!

Answer 2

Hey dear ❗❗

⬛Here is the answer, you needed.

•Perimeter of a
- Equilateral triangle - 3 × side

- Isosceles triangle - 2 × side + side

-Scalene triangle - Side + side + side.

: . So, we have scalene triangle

First side = 8cm

Second side = 11cm

Third side = x

Perimeter = (8 + 11 + x ) cm
= 32 cm

To find the value of x, then

= (8+11 +x) cm = 32 cm
= 19 cm + x cm = 32 cm
x = (32 - 19) cm
= 13 cm

Clarifying- 8 cm + 11 cm + 13 cm
= 32 cm


Hence the third side is 13 cm

Hope my answer will help you ❗❗
Plz mark my answer as Brainliest ❤☺