Question 38
Triangles and QuadrilateralsFind the value of x in the diagram.
- A.60°
- B.65°
- C.120°
- D.125°
Show the answer and explanation
Answer: C (120°)
Explanation
In triangle NMP, ∠M = 180° − 65° − 55° = 60°. QR // MP, so ∠NQR = 60° (corresponding angles), and x = 180° − 60° = 120° (angles on a straight line).