11494.04 or 91952.32
Calculate the area of the base (which is a circle) by using the equation πr² where r is the radius of the circle. Then, multiply the area of the base by the height of the cylinder to find the volume.
Volume = Area of cross section x length
= (1/2 x 2 x 4) x 7
Volume = area of triangle × height of prism
Volume = ((1/2)×2×4) × 7
Volume = 28mi^3
you then get 130.24 ft squared.
its 80ft for the square + the diameter of the half circle which is 50.24ft, and you then get 130.24 ft squared.
figure below: half a circle is 14m...