Answer:
The surface area is 54 square feet
Step-by-step explanation:
Given
The attached figure
Required
The surface area
This is calculated as:

Where

So,


The measure of the angle is 50 degrees because it is half the arc that it is enclosed by
Her horizontal distance to the rim satisfies the ratio
(10 ft -6 ft)/distance = tan(25°)
so the distance is
distance = (4 ft)/tan(25°) ≈ 9 ft
Step-by-step explanation:
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