Question

Find the surface area

Answer 1

Surface Area formula of a cylinder:
S.A = 2 × Area of base + Perimeter of base × Height of prism
       = 2$\pi$r² + 2$\pi$rh
       = 2$\pi$(5)² + 2$\pi$(5)(18)
       = 50$\pi$ + 180$\pi$
       = 230$\pi$ in² ( in terms of $\pi$ )
       = 722.566 in²
       = 722.7 in² ( to the nearest tenth )