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1.
Length = 60 feet
breadth = 40 feet
Area = l × b
= 60 × 40
= 2400 sqft
Consider the tree as a circle ,
diameter = 20 feet
radius = 10 feet
Area = πr²
= 3.14 × 10 × 10
= 314 sqft
Total area of trees = 314 × 6
= 1884 sqft
Percentage = 1884 × 100 / 2400
= 78.5 %
2.
Area = 2400 sqft
consider
the trees , distance b|w them is 5 m
diameter = 5m
radius = 2.5 m
area = π r²
= 3.14 × (2.5)²
= 19.625 sqft
percentage = 19.625 × 100 / 2400
= 0.81 %
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