Question

△ ABC ∼ △PQR, A ( △ABC) = 289 cm2 A ( △PQR) = 144 cm2

. Find BC

.

QR

a.

16

15

​

Answer 1

Step-by-step explanation:

By thm of area of similar triangle

A1^2/A2^2=s1^2/s2^2

hence BC =17 and QR=12