Question

http://prntscr.com/atwzi3

Answer 1

@matthew120

Answer 2

what one do think it is

Answer 3

I'm not sure how to start.

This is a bonus question for fun that was added, so we haven't learned this yet.

Answer 4

Well, I have two facts about quadrilaterals that may help.
1. The sum of angles in a quad is 360 degrees.
2. In a cyclic quad, opposite angles sum up to be 180 degrees.

Answer 5

Ah, so since I know all but one I can add all of them up and subtract from 360?

Answer 6

Well in the question, there are two unknown angles. Is there a diagram of the quad?

Answer 7

@Kikuo

Answer 8

Nope. Sorry, I had to draw it out.

@Isaiah.Feynman

Answer 9

Okay.

Answer 10

We need to find c and d. We could use the fact that opposite sides of a cyclic quad add up to 180 degrees.

Answer 11

180-70
180-45
@Isaiah.Feynman

Answer 12

Yes.