NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And Angles - Problems and Solutions

Question 75

Question. 75

75. In Fig. 5.36, PQ ∥ RS, TR ∥ QU and ∠PTR = 42°. Find ∠QUR.

Answer:

138°

Detailed Answer with Explanation:

Since PQ ∥ RS and TR ∥ QU, ∠PTR and ∠QUR are consecutive interior angles. Thus, ∠QUR = 180° − 42° = 138°.