through a rectangular field of length 90 M and breadth 60 m to cross roads are constructed which are parallel to the sides and cut each other at right angles through the centre of the field if the with other each road is 3 M the area covered find the area covered by the roads
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Answer:
d
Step-by-step explanation:
area of rectangular field - area of two crosss roads
l x b - (l x b)+(l x b)
90 x 60 - (60 x 3)+ (90 x 3)
5400 - (180 + 270)
5400 - 450
4950
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