Mathematics · Oct / Nov 2023 · Paper 21 · Question 21
0580
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NOT TO SCALE E H A D C G F B 9.2 cm 4.5 cm 15.1 cm The diagram shows a cuboid ABCDEFGH. AB = 15.1 cm, BC = 4.5 cm and CG = 9.2 cm. Calculate the angle that the diagonal BH makes with the face ADHE. [4] Question 22 is printed on the next page.
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55.9 or 55.85… [4]
M3 for tan[…] = 15.1 oe 2 + 2 4.5 9.2
or M2 for [AH2 =] 4.52 + 9.22 or [BH2 =] 4.52 + 9.22 + 15.12
or M1 for recognising angle BHA if 0 scored
SC1 for [angle BHD =] 59.7[1…] or 59.72
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