3D Shapes
The top point where the sides of pyramids meet.
Apex
A pyramid whose side faces are not perpendicular to the base.
Oblique
An imaginary line a shape spins around
Axis of rotation
The ratio between a drawing and the real object.
Scale
A flat surface that divides a shape into matching halves.
Plane of symmetry
A flat surface that extends forever in all directions.
Plane
A 3D drawing where depth lines are half size.
Cabinet projection
A 3D shape with flat faces, edges and vertices.
When a shape looks the same after being turned (a four fold axis)
Rotational symmetry
The shape made when an object is cut through.
Cross-Section
Isometric projection