Through a rectangular field 90 m long and 60 m wide, two roads 3 m wide are built through the centre, parallel to the sides and at right angles. Find the area covered by the roads.
Class 7Area of Paths and BordersPerimeter and Area
A441m2
B450m2
C459m2
D432m2
Step-by-Step Solution
90×3+60×3−3×3=270+180−9=441m2.(450m2 double-counts the 9m2 crossing.)
Answer: A) 441m2
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