0580 P42 - Nov 2013 - Q2 - 11 marks
15984
The ramp cross-section ABCD has AB = 6.46 m, AD = 8.6 m, BC = 2.4 m, CD = 1.8 m, and BCD = 90°.
(a) Calculate DBC. [2]
(b(i)) Show BD is exactly 3 m. [2]
(b(ii)) Use the cosine rule to calculate ABD. [4]
(c) The ramp is a prism of width 4 m. Find its volume. [3]
