Properties of prisms
I can appreciate that all prisms have two congruent polygonal parallel faces (bases) with parallelogram faces joining the corresponding vertices of the bases.
Properties of prisms
I can appreciate that all prisms have two congruent polygonal parallel faces (bases) with parallelogram faces joining the corresponding vertices of the bases.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Prisms are 3D shapes with a cross-section that is a uniform polygon.
- All prisms will have a pair of parallel faces that are congruent.
- This polygon cross section is often used to name the prism.
- The sides connecting the bases are parallelograms.
Keywords
Prism - A prism is a polyhedron with a base that is a polygon and a parallel opposite face that is identical.
Cross-section - A cross section is a 2D face made from cutting straight through any plane of a 3D object.
Common misconception
I can tell a 3D shape is a prism because the 2D faces on both ends are congruent.
The cross-sectional face must be the same throughout, not just at the two ends of the shape. Also, the two end faces must be parallel.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
3
4
5
8
15
6
9
5
Exit quiz
6 Questions
16
24
8
2
10