Math
Regular polygons.
Definition
Polygons where all sides are equal in length and all interior angles are equal in measure. Examples include equilateral triangles, squares, and regular hexagons.
Examples
Real-world.
- 1 A regular hexagon has six equal sides and six 120° angles
- 2 A stop sign is a regular octagon
- 3 Each interior angle of a regular pentagon is 108°
Key Fact
Each interior angle = (n-2)×180°/n; Each exterior angle = 360°/n