Question

A right circular cylinder has a base whose area is 154 square feet. If the height of the cylinder is 19 feet, what is its lateral surface area? Use π =
Answer
836 ft2
990 ft2
1672 ft2
1980 ft2

Answer 1

Area of the circular base = pi *r^2
154 = 3.14 r^2
r = 7.003
LA of cylinder = perimeter of base times height
LA = 2 pi (7.003) (19)
LA = 835.59 square feet or 836 square feet

Answer 2

thanks