AQA · Mathematics · 8300

GCSE Maths: Surface area: other prisms

Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise for Surface area: other prisms (Corbettmaths Video 312), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.

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  1. What is the formula for the surface area of a cube with side length s?

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    6s² (because a cube has 6 identical square faces)

  2. How do you calculate the surface area of a cuboid with length l, width w, and height h?

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    2(lw + lh + wh) — add the areas of all 6 rectangular faces

  3. What general method is used to find the surface area of a prism?

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    Add the areas of the two identical end faces (cross-sections) plus the areas of all rectangular side faces

  4. A triangular prism has two triangular ? and three rectangular side faces.

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    end faces

  5. What shape is the cross-section of a parallelogram prism?

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    A parallelogram

  6. When calculating surface area of an L-shaped prism, what must you do with the L-shaped cross-section?

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    Calculate its area (often by splitting into rectangles), then add the perimeter × depth for all side faces

  7. How do you find the surface area of a trapezoidal prism?

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    Add the areas of the two trapezium end faces plus the areas of the four rectangular side faces

  8. When two cubes are joined face-to-face, what happens to the total surface area compared to two separate cubes?

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    The surface area decreases because the touching faces are no longer exposed (subtract twice the shared face area)

  9. For a right-angled triangular prism, how many rectangular side faces does it have?

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    Three — one for each side of the right-angled triangle

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