Question

if two side of triangle is 6cm 9cm and perimeter is 28cm dind third side of a triangle​

Answer 1

Answer:

PERIMETER OF THE TRIANGLE = Sum of all side

Answer 2

Answer:

let the required number be x

perimeter=28cm

P=sum of three sides

28=6+9+x

28=15+x

x=28-15

x=13cm