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ABCD IS A TRAPEZIUM AND E,F ARE THE POINTS ON AD AND BC SUCH THAT AE:ED=1/3,BF:FC=1/3, FIND AB,CD,IF AREA(ABEF):AREA(EFCD)=19:213


Comments

  1. Anonymous27 October 2017 at 19:58

    EF should be equal to (3AB+CD)/4 and not (AB+CD)/4. Correct it.

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