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# Geometry In The Real World

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### Geometry In The Real World

1. 1. Geometry in the Real World<br />Kristen Tegze<br />P2<br />
2. 2. Point<br />a zero-dimensional figure; while usually left undefined, has four main representations - the dot, the node, the location, and the ordered pair of numbers. <br />
3. 3. Line (Segment)<br />A straight line which links two points without extending beyond them.<br />
4. 4. Plane<br />A two-dimensional group of points that goes on infinitely in all directions; made up of infinite lines.<br />
5. 5. Angle<br />A shape, formed by two lines or rays diverging from a common point (the vertex).<br />
6. 6. Perpendicular Lines<br />A line is perpendicular to another if it meets or crosses it at right angles (90°).<br />
7. 7. Parallel Lines<br />Lines are parallel if they lie in the same plane, and are the same distance apart over their entire length.<br />
8. 8. Triangle<br />A closed figure consisting of three line segments linked end-to-end. <br />A 3-sided polygon.<br />
9. 9. Right Triangle<br />A triangle where one of its interior angles is a right angle (90 degrees).<br />
10. 10. Pentagon<br />A number of coplanar line segments, each connected end to end to form a closed shape.<br />
11. 11. Hexagon<br />A polygon with 6 sides.<br />
12. 12. Square<br />A 4-sided regular polygon with all sides equal and all internal angles 90°.<br />
13. 13. Rectangle<br />A 4-sided polygon where all interior angles are 90°.<br />
14. 14. Trapezoid<br />A quadrilateral which has at least one pair of parallel sides.<br />
15. 15. Parallelogram<br />A quadrilateral with both pairs of opposite sides parallel and equal in length.<br />
16. 16. Circle<br />A line forming a closed loop, every point on which is a fixed distance from a center point.<br />
17. 17. Cylinder<br />A Cylinder is a three-dimensional geometric figure that has two congruent and parallel bases. <br />
18. 18. Sphere<br />A three-dimensional surface, all points of which are equidistant from a fixed point.<br />A spherical object or figure.<br />
19. 19. Octagon<br />A polygon with 8 sides. <br />
20. 20. Decagon<br />A polygon with ten sides and ten angles.<br />
21. 21. Nonagon<br /> A nine-sided polygon.<br />
22. 22. All Done!!!!<br />