10 120 130 10 150 Use the figure for Problems 1-3. De 1. Name the obtuse angle. 70 30 3. 00 110 2. Name two acute angles. 3. Name two right angles. 4. Keisha has a straightedge and a compass, but no protractor. What kind of angle can Keisha draw exactly with only these tools? Classify each angle as acute, right, or obtuse. 1. OXTS 2. OWTU 3. K is in the interior of OLMN, mOLMK=52°, and m KMN= 12°. Find mOLMN. 4. BD bisects DABC, mOABD=(1/2y+10), and m DBC= (y + 4)°. Find mOABC.

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