Question

@mathmath333

Answer 1

oh wait ,i think its A opposites sides are congruent since he already proved \(\triangle ~ BAD=\triangle CDA\)
and its one of the defination of parallelogram

Answer 2

so a?

Answer 3

ya for me

Answer 4

thanks! just turned it in and both that u helped me on were correct!!

Answer 5

really was this correct??

Answer 6

because on some sites ,u will find confusing definations of parallelogram