2/24/2013 2/24/2013 2/24/2013 2/24/2013 2/24/2013 Geometry Vocabulary & Formulas K. Wilhite ED TECH 541
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Geometry Vocabulary & Formulas
K. Wilhite ED TECH 541
2/24/20132/24/20132/24/20132/24/2013
Additional Information
Watch for Moby throughout the presentation. When you click on him, you can view a video with more information.
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Parallel LinesTwo straight lines that lie in the same
plane thatwill never cross
Photo used under Creative Commons from Ko: (char*)hook
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Perpendicular LinesTwo straight lines that cross each other
at a 90o
angle
Photo used under Creative Commons from all brown
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TransformationsThe different ways objects can
bemoved on a coordinate planeFor more practice problems, click here
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Transformations
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ReflectionA mirror image of an object
Photo used under Creative Commons from Jheat
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RotationThe turning of an object around a
given point
Photo used under Creative Commons from Juliana S.
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TranslationThe movement of an object from spot
toanother
Image created by K. Wilhite
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Acute TriangleA triangle that is made up of three
angles thatmeasure less then 90o
Photo used under Creative Commons from jared.anderson4
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Obtuse TriangleA triangle that is made up of an angle
thatmeasures greater then 90o but less
then 180o
Photo taken by K. Wilhite
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Right TriangleA triangle that is made up of one 90o
angle
Photo used under Creative Commons from Parth Joshi
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Area of Triangles
Image created by K. Wilhite
For a video lesson and practice problems, click here
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RectangleA quadrilateral that contains four 90o
angleswith opposite sides parallel
Photo used under Creative Commons from Jheat
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Area of Rectangles
Image created by K.. Wilhite
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CircleA round plane whose boundary
(circumference)is made up of points that are the same
distancefrom the center point (radius)
Photo used under Creative Commons from Timothy Valentine
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Area of a Circle
Image created by K. Wilhite
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TrapezoidA quadrilateral with exactly one set of
parallellines
Photo used under Creative Commons from ocherdraco
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Area of a Trapezoid
Image created by K. Wilhite
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ParallelogramA quadrilateral with opposite sides
parallel
Photo used under Creative Commons from Peter Rosbjerg
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Area of a Parallelogram
Image created by K. Wilhite
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CubeA 3D shape that consists of 6 faces
made up ofcongruent squares
Photo used under Creative Commons from ocherdraco
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Volume of a Cube
Image created by K. Wilhite
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Rectangular PrismA 3D shape that consists of 6 faces
made up ofrectangles
Photo used under Creative Commons from Bad Alley
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Volume of a Rectangular Prism
Image created by K. Wilhite
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CylinderA 3D shape that consists of circular
base andstraight parallel sides
Photo used under Creative Commons from brookewill
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Volume of a Cylinder
Image created by K. Wilhite
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SphereA 3D shape that consists whose
boundary ismade up of points that are the same
distancefrom the center point.
Photo used under Creative Commons from mlaudisa
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Volume of a Sphere
Image created by K. Wilhite
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PyramidA 3D shape that consists of a square
base andfour faces that are triangles
Photo used under Creative Commons from Neil B.
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Volume of a Pyramid
Image created by K. Wilhite
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More math videosArea of polygons
Perimeter and Area of RectanglesPerimeter and Area of TrianglesVolume and Surface AreaCircumference and Area of Circles
Geometry
Geometry
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ResourcesBBC Schools. (n.d.). Retrieved February 18, 2013, from BBC Schools: http://www.bbc.co.uk/schools/
BrainPop. (n.d.). Retrieved February 18, 2013, from www.brainpop.com: www.brainpop.com
Khan Academy. (n.d.). Retrieved February 18, 2013, from Khan Academy: https://www.khanacademy.org/
M.D. Roblyer and Aarom H. Doering. (2013). Integrating Educational Technology into Teaching. Upper Saddle River: Pearson.
squidoo. (n.d.). Retrieved February 21, 2013, from squidoo: http://www.squidoo.com/cc-flickr
Teachnology Tutorials. (n.d.). Retrieved February 21, 2013, from Teachnology: http://www.teach-nology.com/tutorials/powerpoint/
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