kindly give solution to the question in the image.

Asked by bhvyajot | 17th Oct, 2018, 11:03: AM

Expert Answer:

Consider angle PRQ = x
so PQR = x ......iso triangle
angle QPR = 180 - 2x
now, for QT || to PR
we need to prove 
angle PQT = angle QPR
lets consider this is equal
angle PQT = angle QPR = angle SQT= 180 - 2x
now,
angle PQT + angle SQT + angle PQR = 180....angles in st. line
180-2x + 180 - 2x + x = 180
so, x= 60
that means triangle PQR should be equilateral, so data is missing in the question

Answered by Arun | 26th Oct, 2018, 11:33: AM