Wednesday, February 18, 2009

Triangles

Triangles are tough shapes. They are the most frequently used shape in architecture because they provide such strong support. Triangles cannot be deformed without changing the length of one it's sides or if one of it's joints break.

Notice how the Golden Gate Bridge is constructed with many triangles to give superior strength and durability.

You may not have recognized this, but many bike frames are built using triangles as the primary shape. Mountain bikes and BMX bikes take a lot of beating from their riders during trail riding and trick jumps, but the triangular frame provides the strength needed to support this force!

Share some examples of where you find triangles at use in the world around you. This may be in your home, school, searching on the Interent, etc.
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11 comments:

  1. AnonymousFebruary 18, 2009 at 2:58 PM

    Dear Mr. Foster,

    I have found that my trampoline has triangles on the bottom of it and my magazine holder has triangles on the sides of it.

    Tarah Block 3

    ReplyDelete
  2. AnonymousFebruary 18, 2009 at 7:41 PM

    i have a shelf that has 2 trangles on it




    tiffany 2nd period

    ReplyDelete
  3. AnonymousFebruary 18, 2009 at 9:19 PM

    hey when i built the building out of marshmellos &toothpicks and where it is built the bottom has TRIANGLES and the body has triangles all over!!!!!!!!!ÜÜÜÜÜÜÜ Selena blk 1 ÜÜÜ

    ReplyDelete
  4. Room 206February 19, 2009 at 5:33 AM

    Selena,

    Exactly! You used triangles because they are STRONG shapes! Great observation!!

    ReplyDelete
  5. AnonymousFebruary 19, 2009 at 8:26 PM

    HI MR.FOSTER!



    Madison from block 1(3)

    ReplyDelete
  6. AnonymousFebruary 20, 2009 at 6:39 AM

    at school, there are triangles by our desks in your room, a table with triangles, and thats all i can think of


    Nick
    Block 3

    ReplyDelete
  7. AnonymousFebruary 20, 2009 at 9:05 PM

    HEY MR.FOSTER!!!!!!!!!!!!!!




    Madison-Block 1(3)

    ReplyDelete
  8. AnonymousFebruary 20, 2009 at 9:59 PM

    THE IFFLE TOWER IS MADE UP OF MILLIONS OF TRIANGELS I FORGOT!!!!!!!!!!!!!



    Selena blk 1 ☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺
    YOU ROCK!!!!!!!!!!

    ReplyDelete
  9. AnonymousMarch 6, 2009 at 10:36 AM

    HEY MR. FOSTER WHATS UP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    ReplyDelete
  10. AnonymousMarch 8, 2009 at 4:53 PM

    some of my window paterns are triangles




    bADgABBY:)

    BLOCK 2

    ReplyDelete
  11. AnonymousMarch 8, 2009 at 4:57 PM

    BELLE'S nose looks like an upside down triangle




    bADgABBY:)

    BLOCK 2

    ReplyDelete

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