perigon

Thân thiện

A student draws a perigon on the whiteboard.

Definition

1. Noun:
   • A full angle; an angle of 360 degrees: A perigon is the complete rotation around a point, representing the entirety of a circle's angular measure.

Usage

• The term "perigon" is a specialized geometric term. It is used to describe the total angular measure of a circle or a complete revolution. It is less common in everyday language than "360-degree angle" or "full rotation" but is precise in mathematical and technical contexts.

Examples

• Noun:
  • The sum of the exterior angles of any polygon is one perigon.
  • Turning through a perigon brings you back to your original orientation.

Advanced Usage

• In advanced geometry, a perigon is sometimes subdivided into 400 grads (or gon) in the centesimal system, as opposed to 360 degrees in the sexagesimal system.
• The concept is fundamental in trigonometry when discussing periodic functions, as sine and cosine have a period of one perigon.

Variants and Related Words

• Full angle: A more common synonym for perigon.
• Round angle: Another term occasionally used with the same meaning.
• Revolution: Often used in physics and engineering to describe a complete turn.

Synonyms

• 360-degree angle
• Complete angle
• Full rotation

Antonyms

• Zero angle (an angle of 0 degrees)
• Acute angle (an angle less than 90 degrees)

Học thuật

Noun

1. an angle of 360 degrees

Từ đồng nghĩa

• round angle