Content code
m1760
Slug (identifier)
polyhedrons-elementary
Parent content
Grades
Grade 5
Grade 6
Equivalent file in the opposite grade group
Topic
Mathematics
Content
Title (level 2)
5th and 6th Grade
Title slug (identifier)
fifth-and-sixth-grade
Contenu
Contenu
Title
What is a polyhedron?
Content
Corps
Among the polyhedrons, there are prisms and pyramids.
Read the prisms and pyramids concept sheet for more information.
Title
What is a convex polyhedron and a non-convex polyhedron?
Content
Content
Corps
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A polyhedron is convex when no part of its angles point towards the inside of the solid. In other words, it does not contain a hollow or cavity.
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A polyhedron is non-convex (concave) when at least one part of it angles points towards the inside of the solid. In other words, it contains at least one hollow or cavity.
Examples:
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Convex |
Non-convex |
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Content
Corps
Connect different points of the solid with line segments to check if a polyhedron is convex or non-convex.
A polyhedron is non-convex if at least one line segment connecting two points lies outside the solid.
Examples:
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Convex |
Non-convex |
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Contenu
Title
See also
Content
Links
Type
Internal
Title
Prisms and Pyramids
Type
Internal
Title
Faces, Edges, and Vertices
Remove audio playback
No