00:03
All right.
00:04
We are asked to find the total cubic yards of the foundation.
00:08
It's 80 feet by 40 feet, 12 feet tall, and two feet thick.
00:14
So that would be, i guess, coming across this way would be two feet thick.
00:20
All right.
00:20
So here's our foundation.
00:21
That's what it looks like here.
00:23
Maybe put a nice basement or something in there.
00:25
Anyway, so here's our foundation.
00:27
We want to find how many cubic yards? so one thing to note is that they did ask for yards cube.
00:33
So we can do this one of two ways.
00:35
We can figure out how many cubic feet it is and then convert it, or we can just convert to yards right now.
00:40
I'm probably just going to convert it to yards.
00:42
It tends to be a little bit easier.
00:43
So instead of 12 feet, we know that there's three feet in one yard.
00:47
So 12 feet would be four yards.
00:49
All we have to do is divide it by three.
00:52
Instead of 40 feet, well, 40, you know, divided by three yards.
00:57
I'm just going to leave it like that.
00:58
And 80, again, doesn't go in nicely.
01:00
So 80 divided by three.
01:03
Yards and then coming across here would be two -thirds of a yard two out of the three feet so two -thirds yards all right so let's start breaking this up into the individual section so what i would probably do is just get these two longer rectangular prisms at the end all right so let's cut those guys off here front and back and then all we'll have are these two shorter pieces uh in the middle all right and i think we should be able to figure those out.
01:34
All right.
01:36
So let's talk about one of these end bars here.
01:39
All right.
01:40
So i know that it's, right, let's see.
01:43
If i just get one of those guys out of here, just so we can kind of look at it individually, right? so it looks kind of like this, this one side here.
01:51
We know that it's two -thirds across.
01:53
So this length is two -thirds yards.
01:56
We're talking now.
01:58
I know that it's the full 40 yards.
02:01
Front to back, and i know that it's still the four yards tall.
02:06
All right.
02:06
So to find the volume, we just have to multiply those things.
02:09
So it is two -thirds times 40 -thirds, oops, 40 -thirds.
02:15
Let me fix that.
02:16
Go back into my yards here.
02:17
I was like, that worked out too nicely.
02:19
That's 40 -thirds.
02:21
And then i have the four yards because it was 12 feet...