heptagonal
Definition
Adjective - Having seven sides and seven angles: "heptagonal" describes a shape or polygon that possesses exactly seven straight sides and seven interior angles.
Usage Examples
- (The building has seven sides.)
- (A geometric solid with seven-sided bases.)
- (The coin had seven edges.)
Advanced Usage
- "heptagonal symmetry": a type of rotational symmetry found in shapes with seven equal sides.
- The flower exhibited heptagonal symmetry, a rare occurrence in nature. (The flower had a seven-fold pattern.)
- "heptagonal number": a figurate number that represents a heptagon.
- The seventh heptagonal number is 28. (A number that can be arranged as a heptagon.)
Variants and Related Words
- Heptagon (noun): a seven-sided polygon.
- Draw a regular heptagon with all sides equal. (A seven-sided shape.)
- Heptagonal (adjective): as defined above.
- Heptagonally (adverb): in a heptagonal manner.
- The tiles were arranged heptagonally. (Arranged in a seven-sided pattern.)
Synonyms
- Seven-sided: having seven sides.
- A seven-sided figure is called a heptagon. (A polygon with seven edges.)
- Septangular: an older term meaning having seven angles.
- The septangular tower was a landmark. (A tower with seven corners.)
Related Idioms
No common idioms exist for "heptagonal" due to its technical nature. It is primarily used in geometry, architecture, and design contexts.