Download 1-4 Angle Measures.notebook

1­4 Angle Measures.notebook
September 16, 2016
9­16 Honors Geometry Warm­up
1. How big is a degree?
2. Does the size of the degree depend on the size of the circle?
http://en.wikipedia.org/wiki/Radian#mediaviewer/File:Circle_radians.gif
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1­4 Angle Measures.notebook
September 16, 2016
1­4 Angle Measure Activity
1.
Draw a ray. 2.
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Name your ray. Write another name for your ray.
Draw opposite rays.
Draw an angle.
Name your angle. Circle the vertex of your angle.
Name the sides of your angle.
Place point Q in the interior of the angle.
Place point R in the exterior of the angle.
Measure your angle. Draw an acute angle. Draw an obtuse angle.
Draw a right angle. Draw a reflex angle.
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1­4 Angle Measures.notebook
September 16, 2016
1­4 Angle Measures Congruent Angles: angles that have the same measure.
Model: Symbols: Angle Bisector: a ray (interior) that divides an angle into 2 congruent angles
Model:
Symbols: 3
1­4 Angle Measures.notebook
September 16, 2016
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1­4 Angle Measures.notebook
September 16, 2016
56o
80o
50o
100o
Yes, angle DBF is a right angle because its measure is 90o.
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