Mathematics · May / June 2024 · Paper 42 · Question 9
0580
As printed in the paper
Show the answer and mark scheme
9(a)[3]
[a =] 9 [b =] 14 [3]
B2 for a =9 OR
M2 for 60 60 ×× π × + ×× π × + + 2 17 2 10 7 7 360 360 oe
or M1 for 60 60 ×× π × ×× π × 2 17 oe or 2 10 oe 360 360 If 0 scored
SC1 for b =14
9(b)(i)[4]
60° at centre or interior angle = 120° × 1 × × [6 ] d 2 sin60 oe 2 127.3 2 = [ d ] × 1 × 6 sin60 2 6.99[9…] to 7.00[…] [4]
B1 M1 M1 A1 Dep on M1M1
9(b)(ii)[3]
1273 [1]
675 or 674.5 to 674.6 [2]
M1 for 2 ×127.3 oe or 6 × 7 × 10 oe
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