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# Presentation1

## by dwilliams2012 on Dec 10, 2009

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## Presentation1Presentation Transcript

• Geometty in the Real World
• Info….
• Dalton Williams
• Mrs. Sykes P- AP Geometry
• 12/11/09
• Point
• A point is something that has a position but takes up no space or volume. It usually defines a line segment’s endpoints or a positions on a plane.
• Line Segment
• A line segment is a broken part of a line with two endpoints
• Plane
• A plane is a flat surface created by at least three or more points. When 3 points make a plane they are coplanar.
• Angle
• An angle occurs when two rays with the same endpoint jut out in different directions.
• Perpendicular Lines
• Perpendicular Lines are two lines that intersect at a 90 degree angle.
• Triangle
• A triangle is a closed figure with three sides and three angles.
• Right Triangle
• A right triangle is a triangle with a 90 degree angle.
• Pentagon
• A closed figure with five sides and five angles
• Hexagon
• A closed figure with six sides and six angles
• Square
• A square is a closed figure with four equal sides and four equal angles.
• Rectangle
• A rectangle is a four sided figure with two pairs of two equal sides, and four equal angles
• Trapezoid
• A quadrilateral figure with two parallel sides and two sides that are not parallel.
• Parallelogram
• A quadrilateral with two pairs of parallel lines and two pairs of congruent angles
• Circle
• A circle is a closed plane curve consisting of all the points in a set distance
• Cylinder
• A cylinder is a three dimensional figure with two circles as a base
• Sphere
• A sphere is a three dimensional figure created by the revolution of a semicircle rotated 360 degrees about its axis.
• Triangular Prism
• A triangular prism is a three dimensional figure with tow triangles for bases
• Vertex
• A vertex is a point that connects two or more lines that make a shape or figure.
• Line
• A line is a flat extension that has no width an goes on forever in both directions