(24) Use algebra to show that in parallelogram ABCD the opposite sides are congruent. Be sure to state whether the sides are congruent or not. A (-6.7). B (0,10), C (4.2). D (-2.-1) 25) Use algebra to show that in rectangle EFGH the consecutive sides are perpendicular. Be sure to state whether the sides are perpendicular or not. E(-4.0), F (2,8), G (6,5), H (0.-3) +-12 + d= (2+412