Plans, Elevations & Nets: WJEC GCSE Intermediate November 2022 Unit 1 Q4

Intermediate November 2022 Unit 1 Q4

4. A cuboid is to be drawn on the isometric grid below.
Find a possible length, width and height for the cuboid, such that:

Write the length, width and height of your cuboid in the spaces below.
Use the grid below to draw an isometric representation of your cuboid. [3]

Length = ………………… cm Width = ………………… cm Height = ………………… cm

Mark scheme

Scheme	Marks	Comments
Choice of length, width and height such that length × width × height = 12 i.e. 12 × 1 × 1 6 × 2 × 1 4 × 3 × 1 3 × 2 × 2	B1	Must be whole numbers for B1. May be seen in any order. Award B1 if length, width and height are not stated but implied by the cuboid drawn.
Correct cuboid drawn	B2	Ignore orientation of cuboid. FT ‘their length, width and height’. For B2, their cuboid must have edges along or parallel to the 3 directions usually associated with isometric paper (the two diagonals and the vertical). Award B1 for one of the following: any one edge dealt with correctly for all its three visible occurrences in a cuboid a cuboid drawn with volume 12cm³ with a different length, width and height stated on answer line (e.g. 3 × 2 × 2 stated on answer lines, but 6 × 2 × 1 cuboid drawn). For any mark to be awarded the line must go ‘through the dots’ AND have both ends ‘on a dot’. Ignore attempt at handling ‘hidden lines’.