Question

Calculate the surface area of a cylinder that is 12 mm tall and has a radius of 2 mm. Use 3.14 for π and just enter the number, not the unit.

Answer 1

Below in bold.

Explanation:

Surface area

= 2pi r h + 2 pi r^2

= 2 * 3.14 * 12 + 2* 3.14 * 2^2

= 100.48.

Answer 2

SA= 2pieRH + 2pieR^2
= 2(3.14)(2)(12) + 2(3.14)(2^2)
= 175.84