polygons (15-5-20)

GOOD MORNING BOYS

Today we will learn about 'Polygons' using a couple of short videos. These videos are simple to follow and explain the concept so beautifully that you will be able to do all your sums without asking anyone!!!!


What are Polygons?

This is a short video that will answer this question. Go ahead and enjoy learning by yourself.

                    https://www.youtube.com/watch?v=MPYNEYeLYaQ

  • A Polygon is a closed figure made up of lines segments (not curves) in two-dimensions.
  • A minimum of three line segments are required for making a closed figure, thus a polygon with a minimum of three sides is known as Triangle.
Polygon
Depending on the sides and angles, the polygons are classified into different types, namely
  • Regular Polygon
  • Irregular Polygon
  • Convex Polygon
  • Concave polygon

Regular Polygon

If all the sides and interior angles of the polygon are equal, then it is known as a regular polygon.

Another short video for you to understand even better what are regular polygons?




Irregular Polygon

If all the sides and the interior angles of the polygon are of different measure, then it is known as an irregular polygon.

Convex Polygon

If all the interior angles of a polygon are strictly less than 180 degrees, then it is known as a convex polygon. The vertex will point outwards from the centre of the shape.

Concave Polygon

If one or more interior angles of a polygon are more than 180 degrees, then it is known as a concave polygon. A concave polygon can have at least four sides. The vertex points towards inside of the polygon.

This is a wonderful video that will explain convex and concave polygons.




                                              

PARTS OF A POLYGON

QUADRILATERAL

In this short video we will discuss the parts of a quadrilateral. You will understand the terms:

 sides, vertices, adjacent and opposite sides and angles of a quadrilateral.



ABCD is a quadrilateral with four sides namely AB, BC, CD and DA.


It has four vertices namely A, B, C and D

A line segment joining a pair of opposite vertices is called a DIAGONAL. So, there are two diagonals namely AC and BD.



Check for understanding

Look at the HEXAGON carefully.

Now , name its

  1. sides
  2. vertices
  3. diagonals
  4. opposite sides
  5. adjacent sides
  6. angles
[I want you post the answers in the comments box]

Polygons - BrainPOP

Comments

  1. Good morning Ma'am I am Lamin M.J 6C

    ReplyDelete
  2. Goodmorning I am murtaza ali 6 c

    ReplyDelete
  3. Ma’am the answers are :

    sides - AB, BC, CD , DE , EF , FA

    vertices - A , B, C , D , E and F

    diagonals- AD , FC

    opposite sides- BC and FE , AB and ED , AF and CD

    adjacent sides - AB - BC, CD - DE, DE-EF , EF- FA, FA - AB

    angles- <ABC,<BCD,<CDE,<DEF,<EFA and <FAB

    ReplyDelete
  4. Good morning ma'am. I am Jessil Abraham 6c

    ReplyDelete
  5. good morning ma,am I am sudeep paul of 6C

    ReplyDelete
  6. Good morning ma'am. I am Arnav Singh 6-C

    ReplyDelete
  7. Good morning Mam I am Arman Khan 6-C

    ReplyDelete
  8. Good morning ma'am
    Abel Simte
    6-C

    ReplyDelete
  9. Good morning Ma'am.Lamlalhawl Gangte,6-C

    ReplyDelete
  10. Good morning ma'am I am Rohi Heiwun Shimray of class 6-C .

    ReplyDelete
  11. Good Morning Mam I am Ashbel Thomas OF Class 6-C

    ReplyDelete
  12. Good morning mam
    I'm frank tunias
    6C

    ReplyDelete
  13. Good morning ma'am. I am Atulya Arya of class 6-C

    ReplyDelete
  14. good morning. Please check the class whts app group for written work that has to be done in the notebook

    ReplyDelete
    Replies
    1. Maam all the geometry work in the same previius copy or we have to make a separate interleaf copy for geometry work??

      Delete
  15. Good morning mam, I am Dan Darlong, 6C

    ReplyDelete
  16. A very goodmorning mam........Aayush Sharma from Class 6-C.

    ReplyDelete
  17. Please see the class whts app group for the written work that has to be done in the notebook.

    ReplyDelete
  18. good morning mam i am Rudrapriyam.

    ReplyDelete
  19. Good morning mam I am priyanshu Gautam from class6-c.

    ReplyDelete
  20. Good morning Ma'am Ronell J Brown.6C

    ReplyDelete
  21. Good morning ma'am I'm Leon Thomas

    ReplyDelete
  22. sides - AB, BC, CD , DE , EF , FA

    vertices - A , B, C , D , E and F

    diagonals- AD , FC

    opposite sides- BC and FE , AB and ED , AF and CD

    adjacent sides - AB - BC, CD - DE, DE-EF , EF- FA, FA - AB

    angles- <ABC,<BCD,<CDE,<DEF,<EFA and <FAB
    Rudrapriyam

    ReplyDelete
  23. Good Morning mam I am Abhav Singh Rawat 6-C

    ReplyDelete
  24. Good morning ma'am. I am Liansuan Khuptong of class 6-C

    ReplyDelete
  25. Good morning mam I am iwin Daniel 6C

    ReplyDelete
  26. Good morning Ma,am this is Vanramsuong Sinate of class 6-C.

    ReplyDelete
  27. Good morning teacher , I am Parv Kumar .

    ReplyDelete
  28. Good morning I am Mohammad Zaid in 6-C

    ReplyDelete
  29. Good Morning Ma'am....💐
    I am Utkarsh student of class 6-C

    ReplyDelete
  30. Good morning madam karmanya bhardwaj 6c

    ReplyDelete
  31. GOOD MORNING MA'AM I AM ANAND GEORGE FROM CLASS 6C AND MA'AM THANK YOU FOR YOU EFFORTS

    ReplyDelete
  32. GOOD MORNING MAM I AM TARUSH SACHDEV OF CLASS 6C

    ReplyDelete
  33. Good morning mam Ayush bhalla class of six c

    ReplyDelete
  34. Good morning ma’am I am manav from VI - C

    ReplyDelete
  35. Ans:
    Side= AB,BC,CD,DE,EF,FA
    Vertices=A,B,C,D,E and F
    Diagonal=AD,BE,CF
    Opposite side= BC and FE,AB and ED, AF and CD
    Adjacent side= AB-BC,CD-DE,DE-EF,EF-FA,FA-AB
    Angles=<ABC,<BCD,<CDE,<DEF,<EFA and <FAB

    -Abhav Singh Rawat

    ReplyDelete
  36. Ma'am the answers are :
    SIDES - AB , BC , CD , DE , EF , FA
    VERTICES - A B C D E and F
    DIAGONALS - AD , FC
    OPPOSITE SIDES - BC and FE , AB and ED , AF and CD
    ADJACENT SIDES - AB , BC CD DE DE-EF EF -FA FA- AB
    ANGLES-<ABC , <BCD , <CDE , <DEF , <EFA , <FAB

    ReplyDelete
  37. Good morning ma'am I am Tanmay garg 6c

    ReplyDelete
  38. Good morning mam I am Manav Singh Negi 6C

    ReplyDelete
  39. good morning ma'am I am Albin Biju 6-c

    ReplyDelete

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