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Math Help - Math Questions...NOT DRAWN TO SCALE

  1. #1
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    Math Questions...NOT DRAWN TO SCALE

    I often see the words NOT DRAWN TO SCALE referring to math questions.

    What exactly does that mean?

    Is there a much easier way of saying the same thing?

    Thanks
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  2. #2
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    Hello, magentarita!


    I often see the words not drawn to scale.
    What exactly does that mean?

    Suppose they gave us \Delta ABC with: .  AB = 10,\;BC = 12,\;AC = 5

    And suppose they supplied this diagram:
    Code:
                      A
                      *
                    *  *
               10 *     * 5
                *        *
              *           *
            *              *
        B *  *  *  *  *  *  * C
                   12

    It is only a rough sketch . . . It is not "drawn to scale."

    AB = 10 does not look like it is twice AC = 5, does it?

    It gives an idea of what the triangle looks like.
    . .
    AC is the shortest side and BC is the longest side.

    But I wouldn't guess the size of the angles from that diagram.
    . . It looks like \angle A is acute, but actually it's about 101.

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  3. #3
    MHF Contributor
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    I see......

    Quote Originally Posted by Soroban View Post
    Hello, magentarita!



    Suppose they gave us \Delta ABC with: .  AB = 10,\;BC = 12,\;AC = 5

    And suppose they supplied this diagram:
    Code:
                      A
                      *
                    *  *
               10 *     * 5
                *        *
              *           *
            *              *
        B *  *  *  *  *  *  * C
                   12
    It is only a rough sketch . . . It is not "drawn to scale."

    AB = 10 does not look like it is twice AC = 5, does it?

    It gives an idea of what the triangle looks like.
    . . AC is the shortest side and BC is the longest side.

    But I wouldn't guess the size of the angles from that diagram.
    . . It looks like \angle A is acute, but actually it's about 101.
    I see what you mean.
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