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31 Cards in this Set
- Front
- Back
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What is another name for Rigid Motion |
Isometry |
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What do the parts of the word Isometries mean? |
Iso - Same Metries - Measure |
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Does an isometry change the length and angle sizes of the figure |
no |
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Rigid Motions make up what kind of geometry? |
transformations |
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What are the 4 types of rigid motions? |
Translation Rotation Reflection Glide Reflection |
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What are the informal terms for the 4 types of rigid motions?
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Translation-slide Rotation-turned Reflection-flip |
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What is the name of the figure we start with? |
Pre-image |
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After a rigid motion what is the figure called |
image |
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What is a composition of rigid motions? Example? |
Combo of 2 isometries example: glide reflection |
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What is a glide reflection? |
A composition of rigid motions composed of a translation and a reflection |
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What do all uses of numbers involve? |
Measurements |
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Are all characteristics of an object easy to quantify? |
No, example is emotions |
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What does the term measurement refer to? |
process and result |
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what is direct measurement? |
getting exact value by repeating a process |
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Where was the origin of OUR measurement system? |
England |
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What are the names used for our measurement system? (4) |
1. British 2. English 3. Customary 4. Traditional |
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What other measurement system is used? |
Metric System |
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What is the metric system referred to as? |
International System of Unit |
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What necessitates standardization of measurement? |
International Trade |
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What is the basic SI unit for length? |
Metre |
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What does one adjust when using the metric system? |
Move the decimal point |
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What is the mnemonic for the basic metric prefixes? |
King Henry Died Drinking Chocolate Milk |
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What are the metric prefixes? What values to they represent |
King Henry Died Drinking Choc. Milk Kilo Hecto Deca Deci Centi Milli K H DA D C M |
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Are measurements exact? |
No |
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How can you lessen the error in measurement? |
use the smallest unit possible |
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What are some words that refer to length? |
time foot height meter |
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what tool is useful in estimating? |
ruler |
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what is true of a central angle? |
center of the angle is the center of the circle |
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what is true of an inscribed angle? |
1. center is ON the circle 2. chords make up the angle |
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what is an exterior angle? |
on the outside of the figure |
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what is a vertical angle? what is another name for a vertical angle? |
when 2 lines cross each other another name for this is opposite angles |
