          you are here > Class Notes - Chapter 10 - Lesson 10-9 Printable version

Circumference and Arc Length - Lesson 10-9

We started today by reviewing what we knew about the definition of circumference and the relationship between the circumference and the diameter of any circle: We then went over a couple of examples of using this knowledge:  Next, we defined arc length: We then compared this to arc measure. Note that two arcs can have the same measure, but different lengths. We then used this information to do the following problems:   And summarized this work with the following theorem: Before reviewing homework, we went through the following "cool" example: The first challenge here was to get the correct diagram: Once we had that, we were OK...just use Theorem 98 and algebra! Other Links  Class Notes Lesson 10-1 Lesson 10-2 Lesson 10-3 Lesson 10-4 Lesson 10-5 Quiz Topics Lesson 10-6 Lesson 10-7 Lesson 10-8 Lesson 10-9 Test Topics    If you have questions, email me at baroodyj@doversherborn.org