POSSIBLE POINTS: 8.33 Question 4
The diagram below, not drawn to seale, shows a block of metal in the shape of a prism.
The cross section of the block is a trapezium, PQRS, with parallel sides QR and PS, and
PQ, the perpendicular distance between the sides.
PQ-15 cm QR-6 cm PS - 12 cm and ST-3 cm
15 cm
6 cm
12 em
R
S
/
3 cm
T
(i)
Calculate the area of the trapezium PQRS.
(2 marks)
(ii)
(iii)
Given that ST-3 cm, calculate the volume of the block of metal. (1 mark)
The block of metal has a mass of 1.5 kg. Calculate, in grams, the mass of ONE
cubic centimetre of metal.
(3 marks)