Yet another angle for you to figure out the relationship!
Here's your next angle! The vertex is OUTSIDE the circle, but how is the angle created? 1. What is the measure of the central angle? 2. The new angle you need to find the measure for is angle CDB. What type of lines create the angle? 3. What do you think is the measure of this angle? Click on the box to see if you were correct! 4. How did they get that answer? It isn't half the measure of the intercepted arc. But there are two intercepted arcs, take a guess as to what the possible relationship could be. 4. Angle CDB is a [b]tangent -secant [/b]angle. What can you conclude about the relationship between the tangent-secant angle and it's intercepted arcs?