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)
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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
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