Question

ABCD is a quadrilateral inscribed in a circle:

Answer 1

What equation can be used to solve for angle A? (5 points)
Select one:
a. (x + 16) + (6x - 4) = 180
b. (x + 16) + (x) = 90
c. (x + 16) - (2x + 16) = 180
d. (x + 16) - (x) = 90

Answer 2

@ganeshie8

Answer 3

To start with the conclusion, the answer is a

Answer 4

really?

Answer 5

Yes. I'll briefly explain why.

Answer 6

This is called Inscribed Quadrilateral Conjecture.

Answer 7

ok ok i got it th

Answer 8

http://www.geom.uiuc.edu/~dwiggins/conj44.html

Answer 9

http://www.geom.uiuc.edu/~dwiggins/conj47.html