Solution of Past Paper of CAIE Math 9709/12 Feb/Mar 2020 Question # 7
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Course
CAIE AS & A Level Mathematics P1 (9709/1)
Institution
CAIE AS & A Level Mathematics P1 (9709/1)
This document presents most carefully worked out and thoroughly explained complete Solution of Past Paper of Cambridge AS/A Level Mathematics (9709), Pure Mathematics 1, Feb/March 2020
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solution of past paper 9709 12 february march 2020
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CIE/GCE/AS/Math/P1/20/Mar/12/Q#7
Question
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.
Solution
We are required to find the area of the shaded region.
Expression for the area of a triangle for which two sides (a and b) and the included
angle (C ) is given;
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