40. Find the surface area of a conical grain storage tank that has a height of 42 meters and a diameter of 20 meters. Round the answer to the nearest square meter. (1 point)

3,028 m2
3,971 m2
1,357 m2
1,671 m2

2 answers

As = pi*r^2 + pi*D*h
As = 3.14*100 + 3.14*20*42 = 2953 m^2.
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