Question

a triangle has a perimeter of 50cm. The sum of 2 sides is 30 cm. what is the length of the third side ?​

Answer 1

Answer:

Length of 3rd side = 50 - 30 = 20 cm

Answer 2

Answer:

let b+c=30

perimeter =50

As we know perimeter of triangle=a+b+c

so:- 50=a+30

a=20