NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Multiple Choice Questions

Question 3

Question.  3

In Fig. 6.7, PQ = PS. The value of x is

(a)

(a) 35°

(b)

(b) 45°

(c)

(c) 55°

(d)

(d) 70°

Detailed Answer with Explanation:

∠Q + ∠R + ∠P = 180°. Here, ∠Q = 110°, ∠R = 25°, so ∠P = 45°. Hence x = 45°.