Question

find the perimeter of a triangle whose sides are:
(a) 3cm, 4cm, 5cm (b) 11m, 12m, 13m (c) 50cm, 40cm,60 cm

Answer 1

you have to add them then you can find your all triangles perimeter..

Answer 2

Answer:

1=12,2=36,3=150 you shoud write formula p=a+b+c