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# Polygon slide

Published on: Mar 4, 2016

#### Transcripts - Polygon slide

• 1. MATHEMATICS FORM 1 POLYGONSITI NORHASMIRA BINTI NORDIN D20111048185
• 2. POLYGON
• 3. WHAT IS POLYGON???
• 4. Bounded by three or more sides Line that Straight Polygon joins twoline sides non- meet at adjacent point vertices of called a Made of polygon is vertex straight lines, called a and the shape diagonal is “closed”
• 5. Which of following are polygon? Why?POLYGON because have straight sides and enclosedNOT A POLYGON because not enclosed figureNOT A POLYGON because has a curve
• 6. How many sides ??? 12 5 4 0
• 7. Type of polygon
• 8. I have 3 straight sides.I have 3 vertices.What shape am I? I’m a triangle!
• 9. TRIANGLE Equilateral Isosceles Triangle Scalene Triangle TriangleThree equal sides Two equal sides No equal sides Three equal Two equal angles No equal anglesangles, always 60°
• 10. I have 4 straight sides.I have 4 vertices. What shape am I? I’m a quadrilateral!
• 11. QUADRILATERAL Quadrilateral just means "four sides" (quad means four, lateral means side). Any four-sided shape is a Quadrilateral. But the sides have to be straight, and it has to be 2-dimensional.
• 13. I have 5 straight sides.I have 5 vertices.What shape am I? I am a pentagon!
• 14. PENTAGONRegular Pentagon Irregular Pentagon Irregular Pentagon Irregular Pentagon
• 15. I have 6 straight sides.I have 6 vertices. What shape am I? I am a hexagon!
• 16. HEXAGONRegular Hexagon Irregular Hexagon Irregular Hexagon
• 17. I have 7 straight sides.I have 7 vertices. What shape am I? I am an heptagon!
• 18. HEPTAGONIrregular Heptagon Regular Heptagon Irregular Heptagon
• 19. I have 8 straight sides.I have 8 vertices. What shape am I? I am an octagon!
• 20. OCTAGONIrregular Octagon Regular Octagon Irregular Octagon
• 21. Symmetry• An object is said to have line(s) of symmetry if one side of it overlaps exactly with the other. Line of symmetry (vertical) Line of symmetry (diagonal) Line of symmetry (horizontal)
• 22. 1. Which of the following is a correct definition of a polygon? A . A closed plane figure with 3 or more straight edges as its sides. B. A figure with 3 or more straight edges. C. A closed figure with either straight or curved edges as its sides. D. A plain figure with 3 or more straight edges as its sides.
• 23. 2. Name the polygon A. Triangle B. Quadriangle C. Hexagon D. Quadrilateral
• 24. 3. Identify the polygon(s) A B D C
• 25. 4. Which of the following are NOT polygons A B C D