A circle has a chord that goes from #( 5 pi)/6 # to #(5 pi) / 4 # radians on the circle. If the area of the circle is #21 pi #, what is the length of the chord?
1 Answer
Nov 16, 2016
Explanation:
Given:
Therefore,
Given: The angle between two the radii on either end of the chord,
Let c = the length of the chord; its length can found using a variant of the Law of Cosines: