The cross-sectional area of the parabolic tunnel is 31415.93 ft²
What is a parabolic tunnel?
A parabolic tunnel assumes the shape of a hemisphere and the cross-sectional area of a hemisphere can be calculated by using the formula:
Area of a parabolic tunnel = πa²
Since the parabolic tunnel assumes the shape of a hemisphere:
- Radius of the hemisphere from the center = a = 20/2 = 10
- Height of the hemisphere r = 12
Area of a parabolic tunnel = πa²
Area of a parabolic tunnel = π(100)²
Area of a parabolic tunnel = 31415.93 ft²
Learn more about the cross-sectional area of the parabolic tunnel here:
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