Download What`s a Widget_NOTES.notebook

What's a Widget_NOTES.notebook
January 14, 2013
Widgets
Today, we are going to begin with some foundational vocabulary words for this year. You see, Geometry is like taking a foreign language class. I need you to be able to understand what I speak, and I need you to be able to speak it back to me. So...we are going to build our vocabulary today. No worries...this will all be review for you.
Ok, now define Zoids.
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What's a Widget_NOTES.notebook
January 14, 2013
To begin, we need some terms to help us define our geometrical world.
These are called undefined terms, which are words that cannot be defined by using other figures.
Point, Line, and Plane are the building blocks of geometry.
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What's a Widget_NOTES.notebook
January 14, 2013
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What's a Widget_NOTES.notebook
January 14, 2013
Acute Angles
Right Angles
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What's a Widget_NOTES.notebook
January 14, 2013
Complementary Angles
Obtuse Angles
Supplementary Angles
Vertical Angles
Linear Pairs of Angles
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What's a Widget_NOTES.notebook
January 14, 2013
You Try...
For Exercises 1-8, draw and carefully label the figures. Use the
appropriate marks to indicate right angles, parallel lines, congruent
segments, and congruent angles.
1. Acute angle DOG with a measure of 45°
2. Right angle RTE
3. Obtuse angle BIG with angle bisector IE
4. DG
MS
5. PE parallel to AR
6. Vertical angles ABC and DBE
7. Complementary angles A and B with m A = 40°
8. Supplementary angles C and D with m D= 40°
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