Answer:
8pi(3x+1)^2 inches^2
Step-by-step explanation:
A=2πrh+2πr^2
A=2pi(3x+1)3(3x+1)+2pi (3x+1)^2
A=6pi(3x+1)^2+2pi(3x+1)^2
A=8pi(3x+1)^2
In case you're confused, first, write out the surface area of a cylinder out, it's a specific formula. Then, plug in your radius and height. It says that the height is 3 times the radius, so that's 3(3x+1).
I hope this helped! If you have any questions or concerns, please don't hesitate to comment them down below! Have a good rest of your day!
