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Name _______________________ WORKSHEET #10 Upward Bound Summer 2011: Geometry OBJECTIVE: I will be able to use the Triangle Exterior Angle Theorem to solve problems. NEW CONCEPT: New Vocabulary → exterior angle, remote interior angles 4 3 3 2 4 1 3 4 1 5 2 1 2 5 Exterior angle: Exterior angle: Exterior angle: Remote interior angles: Remote interior angles: Remote interior angles: The Triangle Exterior Angle Theorem: NOTES AND EXAMPLES: Example 1: In each triangle, find . a) b) Example 2: Find c) Example 3: Find and Example 4: Solve for x and find the measure of all missing angles. More Practice: In each triangle below, solve for x and find the measures of all missing angles. 1) 2) 3) 4)