1. The problem is to classify angles as acute, obtuse, right, or straight based on their descriptions. 2. Definitions: - Acute angle: less than 90 degrees. - Right angle: exactly 90 degrees. - Obtuse angle: greater than 90 degrees but less than 180 degrees. - Straight angle: exactly 180 degrees. 3. For each angle, analyze the description: - Angle 1: Obtuse (given). - Angle 2: Right (given). - Angle 3: Obtuse (given). - Angle 4: Obtuse (given). - Angle 5: Obtuse (given). - Angle 6: Obtuse (given). - Angle 7: Obtuse (given). - Angle 8: Acute (given). - Angle 9: Obtuse (given). - Angle 10: Acute (given). 4. Since the problem provides the classification, the task is to understand and confirm these classifications based on angle definitions. 5. Summary: - Acute angles: 8, 10 - Right angle: 2 - Obtuse angles: 1, 3, 4, 5, 6, 7, 9 This matches the given classifications. Final answer: The classifications are correct as stated.