Mathematics · Oct / Nov 2025 · Paper 22 · Question 23
0580
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The question as text
NOT TO SCALE Í A 240ï 12 cm O The diagram shows a major sector, AOÍ, of a circle. The sector angle is 240° and the radius is 12 cm.
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23(a)[1]
240 360 ××π× 2 12 oe [1]
M1
23(b)[6]
( ) π 256 5 cao 3 [12]
B5 for answer ( ) or ( ) 6 π 256 5 256 5 3 3 seen then spoilt or an answer equivalent to ( ) π 256 5 3 but not in required form OR
B2 for radius of cone = 8 oe
or M1 for 2πr = 16π
B2 for [height of cone =] 80 oe
or M1 for 122 = their 82 + h2 or better 1 ×π× × M1dep for their 8 2 their 80 oe 3 dep on attempt at Pythagoras to find height of cone
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