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1-4 Measuring Angles

Learn about naming, measuring, classifying angles, using congruent angles, and the Angle Addition Postulate in geometry with interactive problems and solutions.

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1-4 Measuring Angles

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  1. 1-4 Measuring Angles

  2. When naming angle using three points, the vertex must go in the middle.

  3. Problem 1: Naming Angles

  4. m˂COD =

  5. Types of Angles

  6. Problem 2: Measuring and Classifying Angles What at the measures of <LKN, <JKL, and <JKN? Classify each angle as acute, obtuse, or right, or straight.

  7. Problem 2: Measuring and Classifying Angles What at the measures of <LKH, <HKN, and <MKH? Classify each angle as acute, obtuse, or right, or straight.

  8. Problem 3: Using Congruent Angles Synchronized swimmers form angles with their bodies, as shown in the picture. If m<GHJ = 90, what is m<KLM? If m<ABC = 49, what is m<DEF?

  9. Problem 4: Using the Angle Addition Postulate

  10. Problem 4: Using the Angle Addition Postulate

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