regularshape
nounUK /ˈrɛɡjʊlə ʃeɪp/
US /ˈrɛɡjələr ʃeɪp/
A regular shape is a shape with all sides the same length and all angles the same size.
A square is a regular shape because every side is equal.
OTHER MEANINGS
2. A shape that follows a fixed, predictable pattern.
The tiles were laid in a regular shape across the floor.
3. A standard or usual form of something.
The cake came in a regular shape, a simple round.
4. In math, a polygon with equal sides and equal angles.
An equilateral triangle is a regular shape with three equal sides.