Question

7. Two sides of triangle are 30cm and 15cm. The perimeter of triangle is 150. what is length of third scale?​

Answer 1

Answer:

Third side =perimeter - (30+15)

=150 - 45

=105 cm

Answer 2

Two sides = 30cm and 15cm

Third side= ?

Perimeter of triangle= sum of all sides= 150cm

                ATQ

→30+15+third side= 150

→45+third side=150

→third side= 150-45

→ third side= 105

hence, the third side is 105cm