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CBSE Class 7 Answered

Through a rectangular field of length 90m and breadth 60m two roads are constructed which are parallel to the sides and cit each other at right angles through the center of fields . if the width of each road is 3m , find : 1) area covered by the roads. 2) the cost of constructing the roads at the rate of 110/- per meter.
Asked by LakshmiJanajanam | 21 Jan, 2020, 10:18: PM
Expert Answer
Hints
Try visualising or drawing a rough figure first.
Find areas of rectangles with respect to length and width
Exclude the area of the figure you will form at the centre.

Calculation Hints
Area of road = Area of the rectangle with length as 90m and width s 3 m + area of the rectangle with 60 as length and 3m as width - the area that is common to both having sides 3m each.

Answered by | 23 Jan, 2020, 03:51: PM

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