Question

two side of a triangle is 11 cm. and 18cm.find the third side of the perimeter is 42 cm ?​

Answer 1

Answer:

given,

two sides are: 11cm and 18cm

perimeter=42cm

we have to find the third side.

let the third side be x

x+11cm+18cm=42cm

x=42-(11+18)

x=42-29

x=13cm is the required answer.!