2-5.) What lengths are you given? Side? Diagonal? Think, what lengths are congruent? What lengths are half of others?
6.) What shape is ABCD? What does that tell you about its sides? If lengths are actually equal or congruent, set them equal to each other (create an equation)!
7.) What shape is ABCD? What does that tell you about its diagonals? (A few things) What does that tell you about 12y? What does knowing angle BCF do for you? (Find angle BCD and then use that to solve the problem…)
8.) Plot the points, then look at WS 6-4B. There are three separate problems: Show the diagonals are congruent (have the same length), then show they are perpendicular (slopes are opposite inverses), and then show that they bisect each other (have the same midpoint).
10-14 are just like 2-6…