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Question

Question 114

A 10 m long and 4 m wide rectangular lawn is in front of a house. Along its three sides, a 50 cm wide flower bed is there is shown in the given figure. Find the area of the remaining portion.

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Solution

Given, dimensions of rectangular lawn =10 m×4 m and width of flower bed = 50 cm

Length of remaining portion, EF=AB(50×2cm)
=10 m100 cm=10m1m=9 m [1cm=1100m]
Breadth of remaining portion, EH = AD - 50 cm = 4m - 0.5 m = 3.5
Required area = Area of portion EFGH=EF×EH=9×3.5=31.5 m2


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