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Polygons

by: Jonathan Urban EDN 303-801. Polygons. Title page. NCSCOS. Lesson. Quiz. Works Cited. Subject Area: Mathematics Grade Level: Third Grade.

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Polygons

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  1. by: Jonathan Urban EDN 303-801 Polygons Title page NCSCOS Lesson Quiz Works Cited

  2. Subject Area: Mathematics Grade Level: Third Grade NCSCOS 3.G.1 Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories. Title page NCSCOS Lesson Quiz Works Cited

  3. Closed figure All sides are line segments Each line segment end connects to only one end of two other line segments Polygons Title page NCSCOS Lesson Quiz Works Cited

  4. All sides have equal length Angles are all the same Regular Polygons Title page NCSCOS Lesson Quiz Works Cited

  5. Three-sided polygon Sum of the angles is 180 degrees Triangle Title page NCSCOS Lesson Quiz Works Cited

  6. Special Triangles Equilateral Triangle • Triangle with three sides of equal length • The angles all measure 60 degrees Isosceles Triangle • A triangle with two sides of equal length Title page NCSCOS Lesson Quiz Works Cited

  7. Special Triangles cont. Scalene Triangle • A triangle with all three sides having different lengths Right Triangle • A triangle having a right angle (90 degrees) • The line opposite the right angle is called the hypotenuse (Labeled C) • The two sides forming the right angle are called legs (Labeled A and B) Title page NCSCOS Lesson Quiz Works Cited

  8. Special Triangles cont. Acute Triangle • A triangle having three acute angles (all angles are less than 90 degrees) Obtuse Triangle • A triangle that has one obtuse angle (one angle is greater than 90 degrees) Title page NCSCOS Lesson Quiz Works Cited

  9. Four-sided polygon Sum of the angles is 360 degrees Quadrilateral Title page NCSCOS Lesson Quiz Works Cited

  10. Special Quadrilaterals Square • All four line segments are equal length and meet at 90 degree angles (right angles) Parallelogram • Has two pairs of parallel sides Title page NCSCOS Lesson Quiz Works Cited

  11. Special Quadrilaterals cont. Rhombus • Four-sided polygon with all four sides having equal length Trapezoid • Four-sided polygon having exactly one pair of parallel sides Title page NCSCOS Lesson Quiz Works Cited

  12. Pentagon • A five-sided polygon • The sum of the angles is 540 degrees Hexagon • A six sided polygon • The sum of the angles is 720 degrees Regular Hexagon Regular pentagon Irregular pentagon Irregular hexagon Title page NCSCOS Lesson Quiz Works Cited

  13. Heptagon • A seven-sided polygon • The sum of the angles is 900 degrees Octagon • An eight-sided polygon • The sum of the angles is 1080 degrees Regular heptagon Regular octagon Irregular octagon Irregular heptagon Title page NCSCOS Lesson Quiz Works Cited

  14. Nonagon • A nine-sided polygon • The sum of the angles is 1260 degrees Decagon • A ten-sided polygon • The sum of the angles is 1440 degrees Regular decagon Regular nonagon Irregular nonagon Irregular Decagon Title page NCSCOS Lesson Quiz Works Cited

  15. All other polygons can be called n-gons N is a place holder for any number Example: A polygon with 13 sides can be called an n-gon or a 13-gon N-gon Title page NCSCOS Lesson Quiz Works Cited

  16. Which of these figures is a polygon? Figure 1 Figure 2 Figure 3 Title page NCSCOS Lesson Quiz Works Cited

  17. Try again Sorry that’s incorrect Title page NCSCOS Lesson Quiz Works Cited

  18. Next Question Congratulation! Title page NCSCOS Lesson Quiz Works Cited

  19. Which figure is a regular polygon? Figure 1 Figure 2 Figure 3 Title page NCSCOS Lesson Quiz Works Cited

  20. Try again Sorry that’s incorrect Title page NCSCOS Lesson Quiz Works Cited

  21. Next Question Congratulation! Title page NCSCOS Lesson Quiz Works Cited

  22. Which figure is a type of parallelogram? Figure 1 Figure 2 Figure 3 Title page NCSCOS Lesson Quiz Works Cited

  23. Try again Sorry that’s incorrect Title page NCSCOS Lesson Quiz Works Cited

  24. Congratulation! Title page NCSCOS Lesson Quiz Works Cited

  25. Title page NCSCOS Lesson Quiz Works Cited

  26. The End Title page NCSCOS Lesson Quiz Works Cited

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