How can its diagonal be perpendicular to one of its sides? Since this can be read out of your details! You know point A and C are not adjacent but C and D are. So, AC must be the diagonal which is never perp. to any of the sides (CD)
Find two pefect lines that touches the middle then do rise over run and that will be your slope
Negative 3143 over 1000 divide -3.143 by 1000 and there’s your answer
I don’t know man u should provide the choices also pls give me brainliest luv u