Please help 1.) Classify the triangle based on its sides. Show all work and justify your answer below. (Hint here)
AB =

2.) On the same coordinate plane, plot point D so that ∆ABD is both adjacent to ∆ABC and is a right triangle. Explain how you know ∆ABD is a right triangle.

3.) For ∆ABD, order the angles from smallest to largest.
Show all work and justify your answer below.