Answer: b
Step-by-step explanation: There was the same question on brainly and they said that the submarine sandwich one was right.
the distance formula to find the length of the sides... opposite sides equal it could be a rectangle or parallelogram all sides equal, square or rhombus adjacent equal, kite and then the slope is used to check angles if the product of the 2 lines in -1 the lines are perpendicular (right angle) the the slopes of 2 lines are the same the sides are parallel.
I think this is it ^_^
D because (a+b)= c and the Pythagorean Theorem is in that correct order
