Question

△ABC ~ △PQR. A(△ABC) : A (△PQR) = 16 : 25. If BC = 2 cm, find QR​

Answer 1

QR=2cm is your answer please make me.

Answer 2

Answer:

QR = 2.5 cm

Step-by-step explanation:

As ∆ABC ~ ∆PQR,

Therefore, ar(ABC)/ar(PQR) = (BC/QR)² = 16/25

(BC/QR)² = 16/25

Taking square root on both sides,

Therefore, BC/QR = 4/5

i.e. 2/QR = 4/5

QR = (5×2)/4

QR = 2.5 cm

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