Question

In ∆ PQR ,PT is a bisector of angle QPR,Q_T_ R if PQ= 6 cm , PR= 9 cm then find QT : TR ?​

Answer 1

PT bisects ∠PQR,

Thus,

QT

PQ

=

RT

PR

4

5.6

=

5

x

x=

4

5.6×5

x=7 cm

Perimeter = PQ + QR + PR

Perimeter = 5.6 + 5 + 4 + 7

Perimeter=21.6 cm