What is the surface area of a conical grain storage tank that has a height of 43 meters and a diameter of 14 meters? Round the answer to the nearest square meter. (1 point)
1,100 square meters
1,112 square meters
2,507 square meters
2,605 square meters

Question

What is the surface area of a conical grain storage tank that has a height of 43 meters and a diameter of 14 meters? Round the answer to the nearest square meter.  (1 point) 
1,100 square meters
1,112 square meters
2,507 square meters
2,605 square meters

wolf1728 · Answer

Lateral Area of a Cone = (π • r • slant height)

slant height² = height² + r² 
slant height² = 43² + 7²
slant height  = sq root (1,898)
slant height  = 43.566

Cone Area = 3.14159265 * 7 * 43.566
= 958.066

Bottom Area = PI * r²
= 3.14159265 * 49
= 153.938

Total area = 1,112.004 square meters