O-LevelAdditional MathematicsCircular measureMay/June 2017Paper 1 Q611 Marks
[Figure Circle with rectangle ABCD] The diagram shows a circle, centre O, radius 12 cm. The points A and B lie on the circumference of the circle and form a rectangle with the points C and D. The length of AD is 8 cm and the area of the minor sector AOB is 150 cm².
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