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Length of the fence of a trapezium shape...

Length of the fence of a trapezium shaped field `ABCD` is `120 m.` If `BC=48m, CD=17m and AD=40m,` find the area of this field. Side `AB` is perpendicular to the parallel sides `AD and BC.`

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RD SHARMA ENGLISH-MENSURATION-I (AREA OF A TRAPEZIUM AND A POLYGON-All Questions
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