Question

A ABC ~ A PQR. If AB = 4 cm. PQ = 6 cm. and QR = 9 cm. Then BC= ?​

Answer 1

Answer:

Given △ABC∼△PQR

∴

area(△PQR)

area(△ABC)

=

QR

2

BC

2

⟹

16

9

=

QR

2

4.5

2

QR=

3

4×4.5

∴QR=6cm