Four angles are shown below. Recall that there are 360 degrees in one full rotation. 

Angle A is 1/8 of a full rotation and therefore Angle A has a measure of _ degrees.   

Angle B is_  of a full rotation and therefore Angle B has a measure of  ___degrees.   

Angle C is _ of a full rotation and therefore Angle C has a measure of _ degrees.   

Angle D is  _of a full rotation and therefore Angle D has a measure of ___ degrees.   

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.