circular measure

Thân thiện

A diagram shows the relationship between a radius and an arc to demonstrate circular measure.

Definition

1. Noun:
   • A system for measuring angles using radians: "Circular measure" refers specifically to the measurement of angles where the unit is the radian, based on the radius of a circle.

Usage

• Noun:
  • In mathematics, circular measure is often preferred over degrees for calculus.
  • The angle was given in circular measure, so we needed to convert it to radians.

Advanced Usage

• "Expressed in circular measure": Describes an angle whose magnitude is given in radians.
  • For this physics problem, ensure all angular displacement is expressed in circular measure.

Variants and Related Words

• Radian (n): The SI unit of angular measure, defined as the angle subtended at the center of a circle by an arc equal in length to the radius.
  • One full rotation is 2π radians.

Synonyms

• Angular measure in radians: A more descriptive synonym.
• Radian measure: A common, direct synonym.

Related Phrases

• Unit circular measure: Refers to the radian as the specific unit within this system.

Học thuật

Noun

1. measurement of angles in radians