A pencil has a cylindrical body with a cone-shaped end. The cylinder is 5 cm long with a radius of 0.29 cm. The cone has a slant height of 1 cm and has the same radius as the cylinder. Determine the surface area of the pencil to the nearest tenth of a square centimeter.

Answer 1

so we are looking at
area of base of cylinder + area of sleeve of cylinder + area of cone without its base
= π(.29)^2 + 2π(.29)(5) + π(.29)(1)
= ....

you do the button pushing

(surface area of cone = πr^2 + πrs, where s is the slant height of the cone.
We only needed the πrs part)