What two parameters are necessary to calculate angular displacement?

Name: What two parameters are necessary to calculate angular displacement?
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Question

Quizplus · Accepted Answer

Angular displacement (Θ) is a measure of the distance between two points when an object has undergone circular motion. The formula for this is:
Θ = S / r
Where S is the arc length, and r is the radius of the circle. Since the formula has a distance in both the numerator and denominator, angular displacement is a unitless value.

What Two Parameters Are Necessary to Calculate Angular Displacement