Question

in triangle ABC similar to triangle pqr, ab=6.5 pq=10.4 and perimeter of triangle abc=60cm, then find the perimeter of triangle pqr

Answer 1

triangle ABC~ triangle PQR
by cpst
$\frac{ab}{pq} = \frac{6.5}{10.4} = \frac{65 }{104} = \frac{5}{8}$
now perimeter of PQR be x
now
$\frac{5}{8} = \frac{60}{x}$
$x = 60 \times \frac{8}{5} = 12 \times 8$
$x = 96$
therefore Perimeter=96cm

Answer 2

Answer:

Given Δ ABC is similar to PQR 

So, perimeter of triangle ABC/perimeter of PQR = AB/PQ

(60/perimeter of Δ PQR) = 6.5/10

Perimeter of Δ PQR = (60 × 10)/6.5

Perimeter of Δ PQR = 600/6.5

Perimeter of Δ PQR = 92.307 cm

Or, 92 cm (rounded off)  Answer