Question

two sides of a triangle are 7 and 13 centimeteres.The perimeter is 27 centimeters. find the third side

Answer 1

Answer:

7 centimetres

Step-by-step explanation:

a = 7

b = 13

p = 27

As, p = a+b+C

=> C = p - (a+b)

=> C = 27 - (7+13) = 27 - 20 = 7 centimetres

Answer 2

Answer:

let the 3rd side be x

perimeter = sum of all sides

27 cm= 7 +13 +x

27 = 20+x

27-20 = x

7 cm = x

3rd side is 7cm long

plzz mark brainliest