Lydia graphed ALMN at the coordinates L (0,0), M (2, 2), and N (2,-1). She thinks ALMN is a right triangle. Is Lydia's assertion correct?
Yes, the slopes of LM and LN are opposite reciprocals.
No; the slopes of LM and LN are not opposite reciprocals.
Yes, the slopes of LM and LN are the same
No, the slopes of LM and LN are not the same.

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

b

step-by-step explanation:

it is 10.6 according to my calculations