NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 5: Lines And Angles - Multiple Choice Questions

Question 40

Question.  40

In Fig. 5.31, PQ ∥ ST. Then, the value of x+y is

(a)

(a) 125°

(b)

(b) 135°

(c)

(c) 145°

(d)

(d) 120°

Detailed Answer with Explanation:

Given ∠S=85°, ∠Q=130°. By parallel line rules, x+y=135°.