MathematicsEuclidean geometryJAMB
In the diagram, ABCD is a cyclic quadrilateral. Find the angle marked y.
Show answer
Answer: B. 105°
Opposite angles of a cyclic quadrilateral add up to 180°, so y = 180° − 75° = 105°.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.