Each of the eight raid target icons (also raid icons or lucky charms) are referred to with common (and usually standard) names. However, for some of them, the names used in mathematics are different.A few definitions
- Shape: An object occupying space, distinguished by its perimeter (outer boundary).
- Plane figure: A shape occupying a two-dimensional plane.
- Quadrilateral: A plane figure with four straight sides
- Parallelogram: A quadrilateral with opposite sides parallel to each other respectively.
- Rectangle: A parallelogram with at least one vertex (corner) a right angle.
