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Answer:
Option B is correct.
The estimated perimeter of an ellipse is 37.3ft
Step-by-step explanation:
<u>Given:</u>
Length of Major-axis (2a)=15ft
Length of minor-axis (2b)=7.5ft
For an ellipse, the perimeter (P) approximately given by:
, where a and b are semi major axis and semi minor axis respectively.(Use approx. value of
)
Here, a=7.5ft and b=3.75ft, putting in above equation, we get
After solving the square-root we get,
.
Therefore, the estimated perimeter of an ellipse is 37.3ft.