Objectives Find the measures of angles formed by lines that intersect circles. Use angle measures to solve problems.

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Presentation transcript:

Objectives Find the measures of angles formed by lines that intersect circles. Use angle measures to solve problems.

Example 1A: Using Tangent-Secant and Tangent-Chord Angles Find each measure. mEFH = 65°

Example 1B: Using Tangent-Secant and Tangent-Chord Angles Find each measure.

Example 2: Finding Angle Measures Inside a Circle Find each measure. mAEB = 126

Check It Out! Example 2a Find each angle measure. mABD

Example 3: Finding Measures Using Tangents and Secants Find the value of x. = 40 = 63

Check It Out! Example 3 Find the value of x. 50° = 83° – x x = 33°

Lesson Quiz: Part III 4. Find mCE. 12°