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12-5 Angle Relationships in Circles Rigor and Relevance Find the measures of angles formed by lines that intersect circles. Use angle measures to solve problems relating to satellites and optometry. Holt McDougal Geometry 12-5 Angle Relationships in Circles Holt McDougal Geometry 12-5 Angle Relationships in Circles Example 1: Using Tangent-Secant and Tangent-Chord Angles Find mEFH and Holt McDougal Geometry . 12-5 Angle Relationships in Circles Example 2: Finding Angle Measures Inside a Circle Find mAEB. Holt McDougal Geometry 12-5 Angle Relationships in Circles Example 3: Finding Measures Using Tangents and Secants Find the value of x in each diagram. A. Holt McDougal Geometry 12-5 Angle Relationships in Circles Example 4: Optometry Two of the six muscles that control eye movement are attached to the eyeball and intersect behind the eye. If mAEB = 225, what is mACB? Holt McDougal Geometry 12-5 Angle Relationships in Circles Example 5: Ferris Wheel 3. An observer watches people riding a Ferris wheel that has 12 equally spaced cars. Find the value of the angle of elevation, x. Holt McDougal Geometry 12-5 Angle Relationships in Circles • Turn in your workbook to page 520 for 1 more theorem and proof. • Complete Practice #2 Holt McDougal Geometry 12-5 Angle Relationships in Circles 12-5 Classwork Workbook pg 521 #4 – 7 Textbook pg835#16, 17, 20, 21, 23, 24 Holt McDougal Geometry 12-5 Angle Relationships in Circles 12-4/12-5 Assignment • Primary assignment: o join.quizizz.com o Due Monday 4/17, code expires @7AM o Codes: o Period 1– 042391 o Period 5 – 813525 o Period 7 – 125741 • Secondary Assignment: o Workbook pg 517 #13, 518 #1, 3 – 6 o Workbook pg 522 ALL Holt McDougal Geometry 12-5 Angle Relationships in Circles 12-4/12-5 Assignment • Primary assignment: o join.quizizz.com o Due Friday 4/14, code expires @7AM o Codes: o Period 2– o Period 4 – o Period 6 – • Secondary Assignment: o Workbook pg 518 ALL o Workbook pg 522 ALL Holt McDougal Geometry