Question

triangle ABC is similar to triangle PQR . M is the mid point of BC and N is the mid point of QR . If the area of triangle ABC = 100cm^(2) the area of triangle PQR = 144cm^(2) and AM = 4cm then find the length of PN

Answer 1

length of PN = 4cm since triangle ABC is similar to triangle PQR

Answer 2

AM/PN=√100/√144
4/PN=10/12
PN=4×12/10
=4.8 cm