Wednesday 9/3 Warm up FSolve for x. 1. x – 5 = 7 2. 5 = 2 - x/3 3. 2(x+5) = 3(x-2) 4. 5x = 3x + 26 5. 180 – x = 3(90-x) FSolve for x. 1. x – 5 = 7 2. 5.

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Presentation transcript:

Wednesday 9/3 Warm up FSolve for x. 1. x – 5 = = 2 - x/3 3. 2(x+5) = 3(x-2) 4. 5x = 3x – x = 3(90-x) FSolve for x. 1. x – 5 = = 2 - x/3 3. 2(x+5) = 3(x-2) 4. 5x = 3x – x = 3(90-x)

Laptops Laptop agreement Student drive – I drive Login and password are the same ex Smith.J541 Laptop agreement Student drive – I drive Login and password are the same ex Smith.J541

Favorite Links FClass Wikispace Geometry FClass Blog FClass Wikispace Geometry FClass Blog

Chapter 1: Section 2 Undefined Terms of Geometry

Chapter 1: Section 2 Notes NOTE TAKING IN YOUR BINDER Notes - Undefined Terms of GeometryWednesday 9/3/08 To take good notes – make sure you Underline terms, draw diagrams, identify notations NOTE TAKING IN YOUR BINDER Notes - Undefined Terms of GeometryWednesday 9/3/08 To take good notes – make sure you Underline terms, draw diagrams, identify notations

Section 1.29/3/08 Warm Up Activity Notes Title Examples and/or classwork Notes – should be ledgible and useful

Geometry FWhat is geometry? FLatin in origin F“Geo” means shape F“Metry” means measure FGeometry is the study of the measurement of shapes and relationships in space FWhat is geometry? FLatin in origin F“Geo” means shape F“Metry” means measure FGeometry is the study of the measurement of shapes and relationships in space

FPlane FPoint FLine Undefined Terms of Geometry M P S FEvery topic of geometry is related to points, lines, and planes! Building Blocks of Geometry!

Undefined Terms FA point represents location. FProperties of Points: FNo size FNo shape FNotation: Capital letter FA point represents location. FProperties of Points: FNo size FNo shape FNotation: Capital letter Diagram: A M Q P L

Undefined Terms FA line is a set of infinite points extending in opposite directions. FProperties: FNo Thickness or length FInfinite FNotation: Two points: MN Lower case letter: line l FA line is a set of infinite points extending in opposite directions. FProperties: FNo Thickness or length FInfinite FNotation: Two points: MN Lower case letter: line l Diagrams: M N Line l

Undefined Terms FA plane is a set of infinite lines that create a flat surface. FProperties: FNo thickness, length, width FTable top FNotation: Capital Letter: plane Z 3 points: plane AIR FA plane is a set of infinite lines that create a flat surface. FProperties: FNo thickness, length, width FTable top FNotation: Capital Letter: plane Z 3 points: plane AIR Diagrams: IR A Z

Relationships In Space

Lost In Space… FThe set of ALL points is called space. FProperties: FThree dimensional FConsists of points, lines, and planes FThe set of ALL points is called space. FProperties: FThree dimensional FConsists of points, lines, and planes ?

Points, Lines, and Planes in Space Points in Space: Points on the same line are called Points in the same plane are called A B MT H A collinear coplanar

Intersection of Objects FWhat does the word intersect mean? FIntersection: FWhat does the word intersect mean? FIntersection: the set of all points that lie in both figures FSymbol:  FExample : Find the Intersection of …

Ways to Say Intersection in Geometry FIntersection: FOn FContains (plane XYZ contains point Z) FPasses through FIntersect at FIntersection of FIntersection: FOn FContains (plane XYZ contains point Z) FPasses through FIntersect at FIntersection of

Points, Lines, and Planes FIntersection: the set of points that lie in both figures (common points) symbol:  Two lines intersect at a A plane and a line intersect at a Two planes intersect at a line point

Parallel Lines and Planes  Lines and planes are parallel if they are coplanar and do not intersect. FSymbol: // or ||  Lines and planes are parallel if they are coplanar and do not intersect. FSymbol: // or || FSee if you can name 4 pairs of parallel lines and planes.

Perpendicular Lines and Planes  Lines and planes are perpendicular if they are coplanar and intersect at a 90 degree angle.

Other Spatial Relationships FSkew: lines or planes that are non-coplanar and never intersect FThree Lines and Intersection: FSkew: lines or planes that are non-coplanar and never intersect FThree Lines and Intersection: Concurrent

Cool Down FCreate your flashcards for today’s important vocabulary. FBe sure to include any diagrams and drawings possible. FPick up HW WS after you complete your notecards. FCreate your flashcards for today’s important vocabulary. FBe sure to include any diagrams and drawings possible. FPick up HW WS after you complete your notecards.