Mathematics · Oct / Nov 2024 · Paper 22 · Question 9
0580
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NOT TO SCALE à A C ã Points A, à, C and ã lie on a circle. AàCã is a square with area cm 2 7 2. Calculate the area of the circle. Give your answer as a multiple of b. cm2 [3]
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36π cao [3]
B2 for answer 113 or 113.0 to 113.1… or an answer in terms of π which rounds to 113
or M1 for correct first step for finding d or r e.g. 72 + 72 = d 2 oe 2 2 72 72 72 = r2 + r2 oe or + = r2 oe 2 2 r 72 = oe sin 45 1 2 × r × r = 72 4 oe
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