Can someone check my answers? I need help on #5 though, attached in the comments

Question

sugarycola · Answer

attachment

anonymous · Answer

http://prntscr.com/5e0hm3 LOL

sugarycola · Answer

@GodlyMaths ??????

anonymous · Answer

Don't see how that's a 110 degree angle.

sugarycola · Answer

I don't either, I didn't make the questions though. @GodlyMaths

anonymous · Answer

It's option C because the consecutive angles are supplementary.

sugarycola · Answer

Ah okay, can you tell if my answers were right? @GodlyMaths

anonymous · Answer

Yes they are correct.

skullpatrol · Answer

When they say "not drawn to scale" does that allow them to show a 110 degree angle like that @GodlyMaths ?

anonymous · Answer

Missed that part.

owlcoffee · Answer

hmm... I'm having  trouble with the third question. 
If it was a square, undoubtly the diagonals would be congruent. but in a parallelogram that does not necessarily happen.

owlcoffee · Answer

Let's say they are congruent.
That would mean that triangles AED and triangle BEC would be congruent, wich means that  t.CED is congruent to t. BEA and congruent to the other two. Wich must mean that all angles are the same, allowing me to conclude that all angles are 90º, wich means the cuadrilateral ADCB is indeed a square. 
Wich is an absurd to the given hypothesis.