Math 150

Homework

2/22/12

Dr. Wilson

 

1. In the following figure,

O is the center of the circle. OA is congruent to CB. What is the degree measure of the angle at A?

2. In the figure below,

O is the center of the circle. The distance from A to D is the same as the distance from O to B. If the angle at A has 20o, how many degrees are in /COB?

3. In the figure below, OE | ON, and AP||ON. If /AOE is 30o, what is /NAP?

4. In the figure below /AOB is 74o. What is /BAC?