00:03
In this problem we're being asked to find the volume and surface area of a cylinder with the given dimensions.
00:09
So here we have the formula for volume of a cylinder, which is pi times radius squared times height.
00:15
So i'm going to go ahead and plug in 3 .14 for pi times your radius squared.
00:23
So that's going to be 5 squared times your height, which is 15.
00:28
Since this is all multiplication, you can just do it straight across from left to right.
00:32
And you get a volume of 1 ,177 .5.
00:42
And since our units are centimeters and we're calculating volume, it's going to be centimeters cubed.
00:48
For surface area, i'm going to do something a little bit different.
00:51
Since i don't already have decimals in my answer, i'm actually going to leave pi in my response until the very, very end, and then i will multiply by 3 .14.
01:00
Sometimes i don't feel the need to introduce decimals until i absolutely have to.
01:04
So i'm going to write 2 and then pi...