Which statement explains how you could use coordinate geometry to prove that quadrilateral ABCD is a square? A. Prove that all sides are congruent, and the slopes of consecutive sides are opposite reciprocals

B. Prove that segments AD and AB are congruent and parallel

C. Prove that opposite sides are congruent and that the slopes of consecutive sides are equal

D. Prove that segments BC and CD are congruent and parallel

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

98%

step-by-step explanation: