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Notes on Geometry

Notes on Geometry. Acute. Angles. An angle that is less than 90 degrees. Angles. Right. Angles. An angle that equals 90 degrees. Angles. Obtuse. Angles. An Angle that is more than 90 degrees. Angles. Straight angles. Angles. An angle that equals 180 degrees. Angles. Complementary.

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Notes on Geometry

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  1. Notes on Geometry

  2. Acute Angles

  3. An angle that is less than 90 degrees. Angles

  4. Right Angles

  5. An angle that equals 90 degrees. Angles

  6. Obtuse Angles

  7. An Angle that is more than 90 degrees. Angles

  8. Straight angles Angles

  9. An angle that equals 180 degrees. Angles

  10. Complementary Angles

  11. Two angles that add up to 90 degrees. Angles

  12. supplementary Angles

  13. Two angles that measure up to 180 degrees. Angles

  14. parallel Angles

  15. Two lines that never touch. Angles

  16. Corresponding angles Angles

  17. 1 2 Are equal! They are the matching angles when a parallel line is crossed with a third line. (so, for example, angle 1 and angle 2 are corresponding angles.) Angles

  18. How many degrees are in a triangle? Triangles

  19. 180 degrees in every triangle. Triangles

  20. isosceles Triangles

  21. A triangle with two equal sides. Triangles

  22. equilateral Triangles

  23. All the sides are equal. Triangles

  24. scalene Triangles

  25. No sides are equal Triangle

  26. right Triangles

  27. A triangle with one right angle. Triangles

  28. Obtuse Triangles

  29. A triangle with one obtuse angle. Triangles

  30. acute Triangles

  31. A triangle with all angles that are acute. Triangles

  32. Polygon Shapes

  33. A shape with all straight sides. Shapes

  34. Regular Polygon Shapes

  35. All equal angles and all equal sides. Shapes

  36. Quadrilateral Shapes

  37. Shape with 4 sides Shapes

  38. Pentagon Shapes

  39. A shape with five sides Shapes

  40. Hexagon Shapes

  41. A shape with six sides. Shapes

  42. Heptagon Shapes

  43. A shape with seven sides. Shapes

  44. Octagon Shapes

  45. A shape with eight sides. Shapes

  46. Nonagon Shapes

  47. A shape with nine sides. Shapes

  48. Decagon Shapes

  49. A shape with ten sides. Shapes

  50. Parallelogram Shapes

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