Question

In triangle ABC, P, Q and R are the midpoint of AB, BC and AC respectively. PQ = 5cm, QR = 6.5cm and PR = 5.5cm. Find the perimeter of triangle ABC. (no figure) ​

Answer 1

perimeter of triangle ABC is 51cm

Step-by-step explanation:

First ,we have to find PQR truangle perimeter

PQR are midpoints for that traingle

so except PQR,there are 3 triangles

find PQR perimeter that is 5.5+5+6.5=17

17*3=51(bcoz there are 3 traingles except PQR