Explain how the radian measure of an angle is determined. Choose the correct ans

Question

Explain how the radian measure of an angle is determined. Choose the correct answer below. A. The radian measure of an angle theta is the length of an arc s on a unit circle associated with theta. B. The radian measure of an angle theta is the area of the sector bounded by the angle and an arc of a unit c C. The radian measure of an angle theta is half the area of the sector bounded by the angle and an arc of a D. The radian measure of an angle theta is double the length of an arc s on a unit circle associated with theta.

Explanation / Answer

Solution:

As we know;

Length of arc = (angle in radians)*r

as well as the angle of an arc(radian value) can be defined along a unit circle.

=> Option-B is correct

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