The area a of a sector of a circle is given by a equals pi times r squared times s divided by 360 where r is the radius of the circle and s is the angle measure in degrees of the sector solve the equation for s to find the angle measure given the radius and area of the circle

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.