MathematicsEuclidean geometryWAEC
A, B and C lie on a circle with centre O, and C is on the major arc AB. If angle AOB = 130°, find angle ACB.
Show answer
Answer: D. 65°
The angle at the circumference is half the angle at the centre: 130° ÷ 2 = 65°.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.