two crossroad each of width 15 constructed at right angles through the center of a rectangular garden of length 500 m an breadth 200 m are parallel to its sides . fin the area of roads.
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Area of 2 roads
= length*breadth +length*breadth - area of square(as the area of square is taken twice while taking area of roads)
=15*500 +200*15-15*15
=7500+3000-225
=10,500-225 =10,275 m sq
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