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Math Help - Ratio of the area of triangle and rectangle

  1. #1
    rcs
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    Ratio of the area of triangle and rectangle

    A triangle and rectangle have equal bases. If the altitude of the triangle is 25% longer than that of the rectangle , find the ratio of the area of the rectangle to that of the. Rectangle.

    can anybody help me understand the problem... I can visualize how it looks like and how to get the ratio of the area


    thanks
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    Re: Ratio of the area of triangle and rectangle

    Hey rcs.

    What is the formula for the area of a triangle and a rectangle?

    Hint: consider that the h in 1/2*b*1.25*h for the triangle is that area whereas b*h is the area of the rectangle.
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    rcs
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    Re: Ratio of the area of triangle and rectangle

    Quote Originally Posted by chiro View Post
    Hey rcs.

    What is the formula for the area of a triangle and a rectangle?

    Hint: consider that the h in 1/2*b*1.25*h for the triangle is that area whereas b*h is the area of the rectangle.

    A=1/2 *b* (0.25h +h)
    For triangle


    A=b*h


    I could not give the numeral value... I'm stuck how is it done?
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    rcs
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    Re: Ratio of the area of triangle and rectangle

    According to the book I've read... It is 5:8.

    How is it possible please
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    MHF Contributor MarkFL's Avatar
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    Re: Ratio of the area of triangle and rectangle

    The ratio of the area of the triangle to that of the rectangle is:

    \frac{1}{2}b\cdot\frac{5}{4}h:bh

    \frac{5}{8}:1

    5:8
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    rcs
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    Re: Ratio of the area of triangle and rectangle

    Thanks Sir Mark
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