A zoo is planned as shown in fig.8. Adjacent to it is a triangular car park having an area of 60 m^2. A circular well with of diameter 6m lies inside the zoo?
I. Fencing is needed for the car park. Find the length of the fence required
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Answers
Given : A zoo is planned as shown . Adjacent to is it a triangular car park having an area of 60 m^2. A circular well of diameter 6m lines inside the zoo
To Find : area of Zoo without well and parking
Solution:
Area of triangle = (1/2) * 12 * h = 60
=> h = 10 m
Height = 10 m
area of zoo with out parking = 12 * 10 = 120 m²
Diameter = 6 m
=> radius = 3 m
Area of well = π3² = 28.26 m²
area of Zoo without well and parking = 120 - 28.26
= 91.74 m²
Fencing as per Diagram for car parking =12 + 10 + 23 = 45 m
Actually 12 + 10 + √12² + 10²
= 22 + 15.6
= 37.6 m
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