1. ANGLE RELATIONSHIPS Mrs. Insalaca 8 th Grade Math

2. ANGLE A figure formed by two rays with a common endpoint

3. VERTEX The point where two rays meet to form an angle

4. RIGHT ANGLE An angle with measure equal to 90°

5. ACUTE ANGLE An angle with measure greater than 0° and less than 90°

6. OBTUSE ANGLE An angle with measure greater than 90° and less than 180°

7. STRAIGHT ANGLE An angle with measurement equal to exactly 180°

8. COMPLEMENTARY ANGLES Two angles whose measures add up to 90°

9. SUPPLEMENTARY ANGLES Two angles whose measures add up to 180°

10. ADJACENT ANGLES Two angles that share a vertex and one side, but no common interior points

11. CONGRUENT ANGLES Angles that have the exact same measure

12. VERTICAL ANGLES Nonadjacent angles formed by 2 intersecting lines Vertical angles are congruent!!

13. NAMING ANGLES Angles are named using 3 points. The point at the vertex is always in the middle of the name. C H A

14. CLASSIFYING ANGLES A C D BE Two Acute Angles: Two Obtuse Angles: A pair of complementary angles: Two pairs of supplementary angles. 30°60° 90°

15. FINDING ANGLE MEASURES

16. FACTOR

17. EVALUATE

18. HOMEWORK Page 20 #22-31 Page 28 #18-26