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Measuring Angles Geometry Date Name Acute Angle – Right Angle – Obtuse Angle – Straight Angle – Congruent Angles – Angles with the same measure. A B __________ = __________ __________ __________ Angle Addition Postulate ____________ + ____________ = ____________ A D B C 1. a) What are two other names for 1 ? b) What are two other names for KML ? c) Would it be correct to name any of the angles M ? Explain. 2. Find the measures of the following angles. Classify each as acute, right, obtuse, or straight. a) mLKN b) mJKN d) mLKH e) mJKL f) mHKN g) mMKH 3. Synchronized swimmers form angles with their bodies as shown in the photo. If mGHJ 90 and mABC 49 , find mKLM and mDEF . Explain. 4. If mROT 155 , what are mROS and mTOS ? Justify and explain. 5. DEF is a straight angle. What are mDEC and mCEF ? Justify and explain. Reflection: 1. If mABD 85 , what is an expression to represent mABC ?