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Math Help - Ratio of areas

  1. #1
    rcs
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    Ratio of areas

    The ratio of similitude of two similar triangle is 3:5. What is the ratio of their areas?

    please have a little help. I don't understand the problem on the term similitude..

    thanks
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  2. #2
    Member kalyanram's Avatar
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    Re: Ratio of areas

    Ratio of similitude refers to the ratio of the corresponding sides in the similar figures in this case the triangles.

    Kalyan.
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  3. #3
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    Re: Ratio of areas

    Quote Originally Posted by rcs View Post
    The ratio of similitude of two similar triangle is 3:5. What is the ratio of their areas?

    please have a little help. I don't understand the problem on the term similitude..

    thanks
    If you have two similar figures, then you have a scaling factor for the sides, call it k.

    Then the scaling factor for the areas is k^2.
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  4. #4
    rcs
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    Re: Ratio of areas

    Quote Originally Posted by Prove It View Post
    If you have two similar figures, then you have a scaling factor for the sides, call it k.

    Then the scaling factor for the areas is k^2.

    Therefore the areas' ratio will be 9:25 ? Is this correct sir?
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  5. #5
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    Re: Ratio of areas

    Yes, well done
    Thanks from rcs
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