Circles Unit 6: Lesson 5 Angle Relationships in Circles Holt Geometry Texas ©2007

Objectives and Student Expectations TEKS: G5A, G5B, G9C The student will use geometric patterns to develop algebraic expressions. The student will use geometric patterns to make generalizations about geometric properties. The student will test conjectures about circles and the lines that intersect them.

Example: 1 Find each measure. J mEFH = 65°

Example: 2 Find each measure. J

Example: 3 Find each measure. mAEB = 126

Example: 4 Find the value of x. x x = 40

Example: 5 Find the value of x. x x = 63

Example: 6 Find the value of x. 50° = 83° – x x = 33°

Example: 7 In the company logo shown, = 108°, and = 12°. What is mFKH?

Example: 8 Two of the six muscles that control eye movement are attached to the eyeball and intersect behind the eye. If mAEB = 225, what is mACB?

Example: 9 Find mLP Step 1 Find Step 2 Find