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

Question 104

Question. 104

104. In Fig. 5.57, PQ ∥ RT. Find the value of a + b.

Answer:

100°

Detailed Answer with Explanation:

Using parallel line properties with transversals and angle sum property of triangle, a + b = 100°.