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

Solid	Main properties
Cube	six equal square faces
Cuboid	six rectangular faces of different sizes
Sphere	completely round, no edges
Cylinder	two circles + side surface
Cone	circle at the bottom + pointy top
Pyramid	square at the bottom + 4 triangles
Prism	two triangles + three rectangles

Faces, edges, vertices – reference

Solid	Faces	Edges	Vertices
Cube	6	12	8
Cuboid	6	12	8
Pyramid	5	8	5
Prism	5	9	6

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

Faces, edges, and vertices – count the parts of a solid.

Mixed

Recognising solids – mixed – the generator switches randomly between task types.