Jim has a cylindrical coffee can that has an inside surface area of 183.69 square inches and a diameter of 6 inches. What height of the coffee can?

Answer 1

3.375 inches

(π is pi, it just looks like an n)

(• is a multiplication sign, so you don't get multiplication and x confused)

the surface area is 183.69

sa=2(π•r•r)+2(2πr•h)

sa=2π•3•3+4π•3•h

sa=2π•9+4π•3•h

sa= 18π+12π•x

56.52+37.68x=183.69

-56.52 -56.52

___________________

37.68x=127.17

_____ ______ These two sets of lines represent fraction lines, aka divide

37.68 37.68

x=3.375

There may be a flaw in my math, but I am pretty sure this is right. Let me know if you have questions, my user name is Iwonder3