Mathematics · May / June 2026 · Paper 22 · Question 16
0580
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The volume of a sphere is 500 . cm3 Using the approximation of 3 for ė, find an estimate for the radius of the sphere. cm [2]
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5 [2]
M1 for [r3 =] 500 ÷ 4 × × oe e.g. [r3 =] 500 3 , 500 , 500 3 3π oe , × π 4 × 4 4 3 3 × π or [r3 =]500 ÷ 4 × 3 oe 500 500 3 , 125, × π 4 1.33 Allow use of 3.14, 22 7 etc for π for M1. 3 125 scores M1. Do not allow ± 5 for 2 marks.
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