00:01
So we have been asked to figure out how many gallons of paint we need to use.
00:06
In order to do that, we need to find the area of the wall space.
00:11
They tell us that we have a 12 by 16 room, so that those are the dimensions if you're looking at it from above.
00:18
And then each of the walls are nine feet tall.
00:22
We are also given that there are two windows in a door, so we're going to come back to that in a second.
00:26
And then we're given how much paint is one gallon covers.
00:31
So we're going to use base times height for all of these to find the area of the rectangles for all of them.
00:39
So for starters, let's start with each of the sides of the room, so each of the walls.
00:45
So we have two walls that are 16 wide times nine.
00:50
And what we said is that we have two of those.
00:53
So that would be 288.
00:57
We also have 12 times 9 times 2 .2 because.
01:02
We do have two of those and we get 2 16 when we do that so we're going to add these two together because we're figuring out what's the total wall space that i have between all four of these walls when do that i get 504 okay so now what i need to do is i need to figure out what is the area of the windows in the door in order to subtract that so we're going to do that right here so my two windows so i have two times two times five because they're again, we're doing base times height.
01:36
So that would be 20.
01:39
And then my door is going to be a four times eight.
01:43
And we only have one door...