Solids – practice

Solids – practice

We've gone through all seven basic solids and learned three things: what they are called, how many faces, edges, and vertices they have, and where to find them in the real world. Below is a quick summary and links to exercises.

The seven basic solids

SolidMain properties
Cubesix equal square faces
Cuboidsix rectangular faces of different sizes
Spherecompletely round, no edges
Cylindertwo circles + side surface
Conecircle at the bottom + pointy top
Pyramidsquare at the bottom + 4 triangles
Prismtwo triangles + three rectangles

Faces, edges, vertices – reference

SolidFacesEdgesVertices
Cube6128
Cuboid6128
Pyramid585
Prism596

Tips

  • Naming a solid: ask – does it have flat faces? Are they curved? How many? What shape?
  • Counting faces, edges, vertices: a picture usually helps – count step by step, don't forget the back and bottom which you may not see.
  • Finding a solid in the real world: ask – what shape does this object basically have? Ignore small details (rounded edges, missing pieces) – you're looking for similarity.

Practice generators

Start here

  • Name the solid – picture of a solid, pick the name from 4 options.
  • Objects around us – real-world object (ball, can...), pick the solid it resembles.

Add the harder ones

Mixed