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Radian
01
radian
a unit for measuring angles, defined by the angle made when the radius of a circle is laid along its edge
Exemple
Trigonometric functions like sine and cosine often use radians.
Engineers use radians to calculate rotational motion.
Knowing the relationship between degrees and radians is essential for trigonometry.
The unit circle helps visualize angles measured in radians.
An angle of 1 radian means the arc length is the same as the radius of the circle.
