In Fig 7.51, PR > PQ and PS bisects `angle QPR`. Prove that `angle PSR > angle PSQ`.

In fig. PR>PQ and PS bisects angleQPR . Prove that anglePSR>anglePSQ

In Fig. 6.15, angle PQR = angle PRQ , then prove that angle PQS = angle PRT .

If in given Fig. , PQ = PT and angleTPS = angleQPR , Prove that triangle PRS is isosceles.

If in given Fig. , PQ = PT and angleTPS = angleQPR , Prove that triangle PRS is isosceles.

In Fig. 6.11, OP, OQ, OR and OS are four rays. Prove that angle POQ + angle QOR + angle SOR + angle POS = 360^@ .

Similarly we can prove that angle 2 = angle 4

In Fig. 6.9, lines PQ and RS intersect each other at point O. If angle POR : angle ROQ = 5 : 7 , find all the angles.

In Fig. 6.42, if lines PQ and RS intersect at point T, such that angle PRT = 40^@, angle RPT = 95^@ and angle TSQ = 75^@ , find angle SQT .

In Fig. 7.49, angle B

In Fig. 6.56, PS is the bisector of angle QPR of Delta PQR . Prove that (QS)/(SR)=(PQ)/(PR)