**Question 1: **Find the perimeter of the triangle having 12 cm, 22 cm and 25 cm.

** Solution: **

Let A = 12 cm, B = 22 cm, C = 25 cm.

The formula to find the perimeter of a triangle is

P = A + B + C

Plugging the given values we get

P = 12 + 22 + 25

P = 59 cm.

Therefore the perimeter of a triangle is P = 59 cm.

**Question 2: **Find the value of A if P = 29, b = 6 and c = 14

** Solution: **

Here for the given problem we need to find the value of 'A'.

As we know, the formula to find the perimeter is P = A + B + C

Plug in the know values to find the value of A.

29 = A + 6 + 14

29 = A + 20

A = 9

Therefore the value of 'A' for the given problem is 9.