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Math Help - Paralleogram-prove s

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    Thumbs up Paralleogram-prove s

    Paralleogram-prove s-110.jpg
    Given: ABCD is a parallelogram;
    BM=MC
    how to prove: S(ABM) = 1 4th S(ABCD) ?
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    Re: Paralleogram-prove s

    Quote Originally Posted by nataku View Post
    Click image for larger version. 

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    Given: ABCD is a parallelogram;
    BM=MC
    how to prove: S(ABM) = 1 4th S(ABCD) ?
    Let $N$ be the midpoint of $\overline{AD}$ then draw $\overline{MN}$.
    Then you have four congruent triangles.
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