Mathematics · May / June 2023 · Paper 42 · Question 5

251 or 251.3 to 251.4 [2]

M1 for 1 3 × π × 2 × 4 15 oe

79.5 or 79.51… [5]

M3 for π ×× 4 4 2 + 15 2 oe 2 + 2

or M2 for 15 4 oe

or M1 for [l2 = ] 42 + 152 oe or π×4× theirl

M1 for their curved surfacearea × [ 100] + π × 2 their curved surfacearea 4 oe

13 min 20 sec [3]

B2 for 800 or 40 3 oe seen

or M1 for figs 3 ÷ figs 375 or figs 3 ÷ 22 500

0.472 or 0.4715 to 0.4716… [3]

M2 for π 0.45 × 2 × = h 0.3 π × 2 × = or 45 h 300000 oe π × 2 × =

or M1 for figs45 h figs3 oe