Fill in all the angles in the following figures.
1.
O is the center of the circle and BC = OA. How many degrees are in /A?
2.
O is the center of the circle, and the distance from A to D is the same as the distance from O to B. If /A has 20o, how many degrees are in /B?
3.
O is the center of the circle and, the distance from A to D is the same as the distance from B to D
4.
OE | ON and AP || ON. If /AOE is 37o, what is /NAP?