3.3 Maps, scale drawings and bearings
Plans, elevations and nets
Everything on plans, elevations and nets that can come up in the WJEC GCSE Mathematics and Numeracy, in all three units. Each skill below has the method, the mistake that costs the most marks, a worked example, and free practice marked the way WJEC marks it.
Practise plans, elevations and nets free
A worked example
Plans and elevations · [2 marks]
A cuboid is 6 cm long, 6 cm wide and 2 cm high. The front of the cuboid is its length × height face. Work out the area of the plan (the view from above).
- M1A 6 cm by 6 cm rectangle
- A136 cm²
The exam skills (2)
Plans and elevations
- Plan: the view from above. Front elevation: from the front. Side elevation: from the side.
- Each view is a 2D shape with the real lengths.
- Work out its area like any rectangle.
Watch out: Using the wrong pair of lengths for the view.
Nets and views
- A net is the shape folded flat.
- Count one face for each face of the solid.
- Check opposite faces do not overlap when it folds.
Watch out: Counting edges instead of faces.
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