Circle angles, trig, polar coordinates
Problem 1
Problem 2
In the picture above, if a, b, c are 60, 80, and 100 respectively, what is z?
Problem 3
Problem 4
Problem 5
What is x if the line is tangent to the circle?
Problem 6
If two sides of an angle are tangent to a circle, must the angle bisector contain the center of the circle?