ANGLES Geometry 1.3a. State Standard: LG.1.G.4Geometry Apply, with and without appropriate technology, definitions, theorems, properties, and postulates.
2-5 Proving Angles Congruent Angle Pairs Vertical Angles two angles whose sides form two pairs of opposite rays. 1 2 3 4 Adjacent Angles two coplanar angles.
SPECIAL PAIRS OF ANGLES
Lesson 1-5
Warm Up Simplify each expression. 1. 90 – (x + 20) 2. 180 – (3x – 10) Write an algebraic expression for each of the following. 3. 4 more than twice a number.
Pre-AP Bellwork 6) Claire draws an angle that measures 56. Justin draws a congruent angle. Justin says his angle is obtuse. Is he correct? Why or why not?
Measuring Angles
Geometry
