Foundation June 2018 Paper 1 Q23

AQACurrent spec3 marksPlans, Elevations & Nets Prisms

23 A solid shape is made from centimetre cubes.

Here are the plan, side elevation and front elevation of the shape.

Plan: an L shape of a column of 4 squares with 2 more squares to the right of the bottom square. Side elevation: 4 columns of heights 2, 2, 3, 4. Front elevation: a 3 by 4 rectangle of squares

Centimetre cubes are added to make this cuboid.

How many cubes are added? [3 marks]

Mark scheme

Answer	Mark	Comments
29	B3	B2 answer 27, 28, 30 or 31 B1 answer 25, 26, 32 or 33 or \(4 \times 4 \times 3\) or 48 (total cubes) or \(2 \times 3 \times 4\) or 24 (missing cuboid) or 19 seen (cubes in original shape)

Additional guidance

Beware of 29 or close to 29 arising from (clear) adding of the squares in the original diagrams. This alone is B0, however B1 can still be scored for either 48, 24 or 19 (or the appropriate products leading to 48 or 24)