WAEC Mathematics 2018 Question 18

Question 18

Triangles and Quadrilaterals

Find the value of t in the diagram.

Diagram for this question
  1. A.63°
  2. B.117°
  3. C.126°
  4. D.234°
Show the answer and explanation

Answer: C (126°)

Explanation

WYZ is a straight line, so ∠WYX = 180° − 117° = 63°. The angle at the centre is twice that: t = 126°.