Question

ΔABC ≅ ΔPRQ and AB = 5 cm, BC = 6 cm, AC = 7 cm, what is the length of QR?

Answer 1

all steps explained please look to it and you will surely understand

Answer 2

Answer:

Step-by-step explanation:

Given, △ABC∼△PQR, as corresponding sides of similar triangles are proportional,

∴  

PQ =AB = QR =BC =  RP -CA = k 1  (let)

Also, AB=5,BC=6,AC=7 So, PQ=5k,QR=6k,RP=7k

Perimeter of △PQR=PQ+QR+RP

⇒360=5k+6k+7k⇒360=18k⇒k=20

Thus, PQ=5×20=100,QR=6×20=120,RP=7×20=140