2-D faces on 3-D shapes · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.
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Flat shapes on solid shapes

Mathematics · Geometry · ages 6-7
Name ______________________   Date ____________

  1. What shape are the faces on the sides of a pyramid?

    • Circle
    • Triangle
    • Rectangle

  2. What shape is the base of a square-based pyramid?

    • Triangle
    • Square
    • Circle
    • Rectangle with two long sides and two short sides

  3. How many flat faces does a cube have, including the hidden faces?

    Answer: ______________

  4. What shape do you see on the end of a cylinder?

    • Circle
    • Square
    • Triangle

  5. A cone and a cylinder have the same number of circular faces.

    Circle one:   True   False

  6. A triangular pyramid has a triangular base and three triangular side faces. How many triangular faces does it have altogether?

    • 5
    • 6
    • 4
    • 3

  7. You cover one circular face of a cylinder. How many circular faces remain uncovered?

    Answer: ______________

  8. Which part of a square-based pyramid is not a face?

    • The pointed top
    • The flat square base
    • One triangular side

  9. Ben says a sphere has a circular face because a ball looks round. Does a sphere have a flat circular face?

    • Yes, it has one flat circular face
    • No, it has no flat faces
    • Yes, it has two flat circular faces

  10. Mia counts only the cube faces she can see without turning the model. Her count must include every face.

    Circle one:   True   False

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Answer key

For grown-ups. Fold this page away before handing over the rest.

Flat shapes on solid shapes W1-mt_UooUHC_V7U-s1

  1. Triangle · A pyramid's side faces are triangles that meet at a point.
  2. Square · The base is a square, with four equal sides. The triangular faces are the sides of the pyramid.
  3. 6 · Top and bottom, front and back, left and right make six square faces.
  4. Circle · The flat end of a cylinder is a circle.
  5. False · A cone has one circular face. A cylinder has two.
  6. 4 · Include the base: one triangular base plus three triangular sides makes four.
  7. 1 · There are two circular ends. Covering one leaves one uncovered.
  8. The pointed top · The pointed top is a point, not a flat part. The base and triangular sides are faces.
  9. No, it has no flat faces · Looking round is not enough. A sphere's surface curves everywhere, so it has no flat face.
  10. False · Faces at the back or underneath may be hidden. She needs to check those too.
Worksheet · LightMySky