Question

4) If  ABC ~  PQR, A( ABC) = 162 sq. cm and

A( PQR) = 450 sq. cm then find AB : PQ.​

Answer 1

ANSWER

∵ΔABC∼ΔPQR

∴

ar(ΔPQR)

ar(ΔABC)

= QR 2BC 2⇒ 4936=QR 2122⇒(QR) 2= 36 12×12×49

=4×49

⇒QR=+

4×49=2×7=14cm