Question

what is the length of the third side of triangle if one side measure 10 centimetre, second measures 15cm and the perimeter is 45 cm ​

Answer 1

Answer:

the length of the third side is 20 cm

Step-by-step explanation:

Perimeter = sum of all sides

45=10+15+third side

45-25= third side

Third side= 20 cm

HOPE IT HELPS!!!!!!!!!!

Answer 2

Step-by-step explanation:

Perimeter of a triangle= Side+side+side

ATQ,

45=10+15+ Third side

or, Third side=45-(10+15)

or, Third side=20cm

Hope it helps

Please mark me as the Brainliest