Help! How do i fill out this proof?

Question

anonymous · Answer

attachment

anonymous · Answer

No... I unfortunately can't do geometry to save my life...

Could you not say CGH = 90 because of it's vertically opposite to FGD?

That's just a guess though...

anonymous · Answer

I'm sorry i couldn't be more help...

anonymous · Answer

@mathmale @ganeshie8 will someone please help..

mathmale · Answer

Sweetie:  I'd like to help, but I always prefer that my efforts supplement your efforts.  Why not make a list of the definitions and theorems you already know, such as the definition of "alternate interior angles?'  Once you have that list you could determine whether the angles shown in the diagram fit any of the definitions.  

Hints:  what do you know about "straight angles"?
                "     "   "        "        "      "supplementary angles"?