Question

In Fig. 6.44, the side QR of ∆PQR is produced to
a point S. If the bisectors of angle PQR and
angle PRS meet at point T, then prove that
QTR =1/2 angleQPR.​

Answer 1

Step-by-step explanation:

using exterior angle property in triangle PQR .

We get the first equation

now applying same property in triangle TQR.

We get second equation

comparing both equation we get

1/2 angle QPR = angle QTR