Question

If triangle ABC is similar to PQR if M is the midpoint of BC and N is the midpoint of QR.If the area of triangle ABC is 100cm and the area of triangle PQR is 144cm and AM is 4cm then PN is equal to?

Answer 1

ar(∆ABC)/ ar(∆pqr) = AM²/ PN²
√∆ABC / √∆PQR = AM/ PN
√100/√144 = 4/ PN
PN = 12*4/10
PN= 4.8 cm

Answer 2

here is the solution