Question

triangle abc is similar to triangle pqr . A(PQR):A (ABC) =16:25.If BC =2 Cm,find QR​

Answer 1

Answer:

Step-by-step explanation:

△ABC ~ △PQR.

Area(△ABC) : Area (△PQR) = 16 : 25.

IBC = 2 cm

A(△ABC) : A (△PQR) = BC^2:QR^2

16:25 = 2^2:QR^2

QR^2= 25 X 4/16

QR= 25/2

=12.5cm

Answer 2

Answer:

∆ABC ~ ∆PQR.

Area (∆ABC) : area (∆ PQR) = 16:25.

IBC= 2cm

A(∆ABC):A(∆PQR)= BC^2:QR^2

16:25=2^2:QR^2

QR^2=25×4/16

QR= 25/2

=12.5 cm

hope it's helpful..!!!