Question

A tringle has a perimeter of 60 cm. if its two side are of length 18 cm and 22 cm. find the length of the third side.
​

Answer 1

Answer:

length of the third side=18+22

=40

=60-40

=20

Answer 2

Answer:

perimeter=60cm

perimeter is equals to sum of all side

perimeter is equals to 18 + 22 + third side

60=40 +third side

third side is equals to 20 cm