Question

Define radian measures​

Answer 1

Step-by-step explanation:

Radian measure is the ratio of the length of a circular arc (a) to the radius of the arc (r). ... One radian is the measure of a central angle subtended by an arc that is equal in length to the radius of the circle.

Answer 2

Answer:

Radian describes the planar angle subtended by a circular arc at the center of a circle.

It is defined as the length of the arc divided by the radius of the arc.

One radian is the angle subtended at the centre of a circle by an arc that is equal in length to the radius of the circle.

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