Answer:
I don't remember well, and I'm not sure if this is correct, but, I think the answer is This is beacuse ∠FCD are facing with ∠CDG meaning it would be a same side interior angle.
Now: a=j+4
6 years ago: Anabelle: a-6; Jason: j-6
D. FH
Diameter-
a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
They are based on SSS. They have the middle side which they share and is equal. And those other two lines also make those sides equal, so all sides are equal and they’re congruent