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4MA1/1F Jun 2018, Question 3: Naming and Properties of 3D Solids

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 3 marks

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The question, in short

For a given 3-D shape, name it mathematically, then state how many faces and how many vertices it has.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Part (i) · 1 mark

Write down the mathematical name of the 3-D shape.

  1. 1The shape has two triangular bases and three rectangular faces connecting them, which defines a triangular prism.

Answertriangular prism

Part (ii) · 1 mark

State how many faces the shape has.

  1. 1There are 2 triangular faces and 3 rectangular faces.
  2. 22 + 3 = 5

Answer5

Part (iii) · 1 mark

State how many vertices the shape has.

  1. 1A triangular prism has two triangular ends
  2. 2Each triangle has 3 vertices, and these are all the corners
  3. 33 + 3 = 6

Answer6

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