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.
A. 1,100 square meters
B. 1,112 square meters
C. 2,507 square meters
D. 2,605 square meters
we know that [surface area of the cone]=pi*r²+pi*r*l where r is the radius l is the slant height l²=h²+r² h=43 m r=14/2---> 7 m l²=43²+7²----> l²=1898--------> l=43.57 m [surface area of the cone]=pi*7²+pi*7*43.57----> 1111.53 m²----> 1112 m²
