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Math Help - plz help me with this..

  1. #1
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    plz help me with this..

    ABCD is a quadrilateral . F is a point on AD such that AF=2.1cm and FD=4.9cm. E and G are points on AC and AB respectively such that EF//CD and GE//BC. Find
    a) Area of triangleAGE/Area of trapezium GBCE
    b) Area of triangleBCD/Area of triangleGEF
    Attached Thumbnails Attached Thumbnails plz help me with this..-4uhtz7.jpg  
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  2. #2
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    Quote Originally Posted by snigdha View Post
    ABCD is a quadrilateral . F is a point on AD such that AF=2.1cm and FD=4.9cm. E and G are points on AC and AB respectively such that EF//CD and GE//BC. Find
    a) Area of triangleAGE/Area of trapezium GBCE
    b) Area of triangleBCD/Area of triangleGEF
    You may view this as a 3-dimensional figure also,
    a 3-sided pyramid similar to a tetrahedron with base BCD.

    All sides are divided in the same ratio...

    AF:FD=AG:GD=AE:EC=GE:BC=EF:CD=GF:BD=[2.]:[4.9]

    AF:AD=AE:AC=AG:AB=[2.1]:7

    Area of AGE to Area of ABC is (2.1)^2:7^2

    Area of AGE to GBCE is 7^2-[2.1]^2)" alt="(2.1)^27^2-[2.1]^2)" />

    Area BCD to GEF is 7^2:[2.1]^2
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