Mathematics (AS & A Level) · Feb / March 2020 · Paper 12 · Question 7
9709
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O A B C D 0.8 rad 6 cm The diagram shows a sector AOB which is part of a circle with centre O and radius 6 cm and with angle AOB = 0.8 radians. The point C on OB is such that AC is perpendicular to OB. The arc CD is part of a circle with centre O, where D lies on OA. Find the area of the shaded region. [6]
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