Question

Find the surface area of a cylinder with diameter 22 inches and height 15 inches.

Answer 1

Answers are...

A: 1796 inches squared
B: 330 inches squared
C: 5700 inches cubed
D: 1036 inches squared

Answer 2

Surface area=2πrh+2πr^2π

π=3.14
r= radius/half of the diameter

Answer 3

Just plug in your information into the formula and you should figure it out :)

Answer 4

So it should be 2 x 3.14 x 15 x the height + 2 x 3.14 x 15 to the second power x 2 x 3.14? That's what I have to do?

Answer 5

To find surface area of cylinder we use the formula
2pi r^2 + 2pi rh

Answer 6

yep! correct

Answer 7

btw- @Imtiaz7 I already gave her the formula and she figured it out

Answer 8

I'm a he.

Answer 9

But I do understand how you could get confused.

Answer 10

ya sorry :(

Answer 11

It's alright.

Answer 12

so diameter is twice of redius so r=22/2=11 and height is given that is 15 inches so put the values you get the answer

Answer 13

So it's 1796?

Answer 14

Exactly! :)

Answer 15

Thank you.

Answer 16

welcome :)