Nirvana

): im most likely gonna "destroy" up on my test tomorrow then lol 

but no lol i made the question up :') 


thanks tho for your help again 

yes it goes in the order ABCD except swap d and c 

yea it's a parallelogram 

also they aren't equal in length though,,, i thought for a parallelogram i had to prove diagonals non congruent (because it might interfere with the def. of rectangle) and opposite sides parallel (which is the same for rectangles except rectangles have congruent diagonals) 

maybe i have to prove they bisect each other as well as to the other proofs though,,, 

so would i use the two diagonals to find where they intersect and the midpoint is the proof? 

what just happened....

yes, you did but did i do it right or wrong.....

OHHHH so  i  was using it correctly or no.... 

and btw thanks CU :DD

yes im sure parallelograms do not have perpendicular diagonals,,, only rectangles, some rhombi, and squares do so.

but why would you have to prove that your diagonals bisect each other? I thought that only applied to rhombi...

 

algebraic proofs ):

also how would you prove if a quadrilateral is a rhombus and a square? 

im really really really confused ):

thanks CPhill! :)