Standardized Test Practice

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Standardized Test Practice EXAMPLE 4 Standardized Test Practice SOLUTION Use the Polygon Exterior Angles Theorem to write and solve an equation. x° + 2x° + 89° + 67° = 360° Polygon Exterior Angles Theorem 3x + 156 = 360 Combine like terms. x = 68 Solve for x. The correct answer is B. ANSWER

GUIDED PRACTICE for Example 4 A convex hexagon has exterior angles with measures 34°, 49°, 58°,67°, and 75°. What is the measure of an exterior angle at the sixth vertex? 5. SOLUTION x° + 34° + 49° + 58° + 67° + 75° = 360° Polygon Exterior Angles Theorem x + 283° = 360° Combine like terms. x = 77° Solve for x