Mathematics · Oct / Nov 2025 · Paper 21 · Question 12
0580
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The diagram shows a sector of a circle with centre O and radius 9 cm. 9 cm 9 cm O NOT TO SCALE The perimeter of the sector is ĕ ( ) 18 2 Ë cm. Find the area of the sector. Give your answer in terms of ĕ. cm2 [4]
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9π [4]
M3 for a fully correct method π 2 ×× π 2 e.g. 9 oe π × 2 9 OR
B2 for 40 or 1 oe 9 π π
or M1 for 18 + k ×××= 2 9 1 8 + 2 oe their k × π × 9 2
M1 for ( ) oe OR
SC2 for answer 81 + 9π oe
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