radian in a sentence
n.
Definition
A radian is a unit of angular measure defined as the angle subtended at the center of a circle by an arc equal in length to the circle's radius.
Sample Sentences
- A radian is defined as the angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle.
- In trigonometry, angles are often measured in radians rather than degrees for more straightforward calculations.
- To convert degrees to radians, one can multiply the degree measurement by π/180.
- The formula for the circumference of a circle can be more easily understood when working in radians.
- Understanding radians is essential for advanced studies in calculus and physics.
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