00:01
We need to find the surface area in the volume of our cylinder.
00:06
And it tells us that we're going to use 3 .1 for pi.
00:10
So we're not going to use the pie button on our calculators.
00:14
This is the diagram that you're given.
00:16
So we're given that the radius.
00:18
So half of our diameter is five.
00:21
And then we're given that the height of our cylinder is six.
00:25
These are the formulas that go along with our surface area and our volume.
00:30
So all we need to do is substituted.
00:32
Here so we have two and then pi it wants us to use 3 .14 our radius was 5 and then our height was 6 plus 2 again for pi we're using 3 .14 and then we have radius squared so 5 squared notice that i put that squared inside my parentheses that'll be helpful when we're plugging into our calculators so when we do 2 times 3 .14 times 5 times 6 again, make it look just like this in your calculator with parentheses.
01:10
We would get 188 .4.
01:15
Over here, do the same thing...