Fundamentals of Geometry

Respond to one or more of the following in a minimum of 175 words: 

•   This week we learned about circles. Choose one of the characteristics of circles that is discussed this week and explain what you found interesting about this characteristic? Think of a real world example and explain how this understanding informs your choice. 
•    Explain how to determine the measure of arcs if given an inscribed angle to someone who has never taken Geometry before.
•     What is one relationship between lines and circles? Explain at least one real-world application of the relationship.