Question

triangle has a perimeter of 60 CM if two sides are of length 18 centimetre and 22cm find the length of the third side​

Answer 1

Answer:

1st side = 18 cm

2nd side = 22 cm

3rd side = x cm

perimeter of triangle = 60 cm

18 + 22 + x = 60

40 + x = 60

x = 60 – 40

x = 20 cm

Therefore, 3rd side = 20 cm