00:01
Okay, so if your diameter is 8, then we're going to take this one centimeter, this half a centimeter off on each side, which would make your diameter of the inner circle 7.
00:14
So from one side to the other would be 3 .5 would be your radius of the inside.
00:20
Now, the same for the bottom.
00:22
Now, the bottom has a thickness at the bottom of 0 .5 as well.
00:27
So the height inside would be 14 .0 .13 .5.
00:38
So to calculate your volume, pi times the radius squared times the height, so 3 .5 squared times 13 .5 pi.
01:07
So 3 .5 squared times 13 .5 pi gives us the volume is 5 .54 cubic centimeters, which is equal to one millimeter.
01:29
So if one cubic .5 nearest 10, 4 millimeters.
01:46
Okay.
01:49
Now, which i think would be 520 milliliters, around as the nearest 10.
01:56
Okay, so now the cost for the outside, so that's going to be your surface area.
02:05
So the area of, let's see, so we need the area of the base.
02:13
So the base is pi times the radius squared.
02:19
So the radius is going to be four...