What is this problem y=1/2x²-2x

∆red ≅ ∆ by rule will give brainiest if possible

Are the corresponding angles congruent? explain why or why not.

Evaluate the function , when d = {9, 15, 30}. r = {5, 7, 12} r = {6, 10, 15} r = {6, 10, 20} r = {5, 12, 20}