A circle has a chord that goes from #( pi)/3 # to #(7 pi) / 12 # radians on the circle. If the area of the circle is #16 pi #, what is the length of the chord?
1 Answer
Oct 10, 2016
The chord length is
Explanation:
Use the equation for the area of the circle to find the radius:
Compute the angle:
Because the chord and two radii form a triangle, one can use the Law of Cosines to find the length of the chord, c: