5. Given a parallelogram with angles a, b, c, and d, describe how angle a is related to the other three angles. Your answer should be general, in that it would hold for every parallelogram, not just for the particular parallelogram shown in the figure. 80 B d a e A

Determine the type of triangle represented if the lengths of its sides are: a a=1.5, b= 2 and c = 2.5 b a= 20, b= 21 and c = 29 c a=10, b= 12, and c =16 d a= 5, b= 7 and c = 9

Complete the drawing so that the figure is reflected across a line l b line m

a Argue that the midpoint of the hypotenuse of a right triangle is equidistant from the three vertices of the triangle. Use the fact that the congruent diagonals of a rectangle bisect each other. Be sure to provide a drawing. bUse the relationship from part a to find CM, the length of the median to the hypotenuse of right ABC, in which mC=90, AC = 6, and BC = 8.