A circle has a chord that goes from #( 5 pi)/8 # to #(4 pi) / 3 # radians on the circle. If the area of the circle is #16 pi #, what is the length of the chord?
1 Answer
Aug 24, 2017
Explanation:
Use the formula
to find the value of r:
The angle between two radii to each end of the chord is:
Because the two radii and the chord form a triangle we can use The Isosceles case of The Law of Cosines to find the length of the chord, c: