Answer to Question #291556 in Civil and Environmental Engineering for Flor

Question

Find by use of differentials the approximate total area of a right circular cone whose base radius and height are 5.03 inches and 11.89 inches, respectively.

Answer 1

A= $\pi$r(r+√h²+r²)

A= $\pi$rl+πr²

l=r²+h²

A= π·5.03·(5.03+11.892+5.032)

A= 283.49467