Question

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

Answer 1

Answer:

10 cm

Step-by-step explanation:

Using the formula

P=a+b+c

Solving for c

12+14= 26

36-26= 10 cm

Answer 2

Answer:

10 cm

Step-by-step explanation:

Given: 2 sides of a triangle and the perimeter

Find: 3rd side of the triangle

The 2 sides of the triangle= 12 cm and 14 cm

Perimeter= 36 cm

Let the 3rd side be $x$

Therefore,

12+14+$x$= 36 cm

=26+$x$= 36 cm

If 26 is taken to the other side of equality

=  $x$ = 36-26 cm

= $x$= 10 cm

The 3rd side is 10 cm