O-LevelAdditional MathematicsCircular measureMay/June 2017Paper 1 Q1011 Marks
The diagram shows a circle, centre O, radius 8 cm. The points A, B, C and D lie on the circumference of the circle such that AB is parallel to DC. The length of the arc AD is 4 cm and the length of the chord AB is 15 cm. [Figure 10.1 - A circle with center O and radius 8 cm. Points A, B, C, D are on the circumference. Chord AB is near the top, chord DC is near the bottom, and they are parallel. Arc AD is on the left side, arc BC on the right side. The region between the two parallel chords is shaded.]
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