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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

Brandon Scott

in Mathematics

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1 answer

Ralph Lopez on March 26, 2018

We know that[area of the surface of the cone]=pi*r2+pi*r*lwhere r is the radiusl is the inclination heightl2=h2+r2h=43 mr=14/2---> 7 ml2=432+72----> l2=1898--------> l=43.57 m[area of the surface of the cone]=pi*72+pi*7*43.57----> 1111.53 m2----> 1112 m2the answer is option B. 1,112 square feet

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