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If the area of a trapezium is 28 c m^2 a...

If the area of a trapezium is `28 c m^2` and one of its parallel sides is 6cm, find the other parallel side if its altitude is 4cm.

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RD SHARMA ENGLISH-MENSURATION-I (AREA OF A TRAPEZIUM AND A POLYGON-All Questions
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  13. Find the area of the hexagon shown in Figure if MP=9 cm,MD=7 cm,MC=6...

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  19. Find the area of the following polygon, if A L=10 c m ,\ A M=20 c m ,\...

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