00:01
Okay, you didn't draw a picture, so i'm going to assume that this is what our picture looks like, and that we want to find the area of this shaded region here.
00:08
And it says a rectangle is placed around a semicircle, and that the width of the rectangle is 8.
00:15
So if the width of that rectangle is 8, that means that this is also 8, which happens to be the radius of the circle.
00:23
So if that's the radius of the circle, that means that this length here, from here to here, is 8, and this length from here to here is also 8, which means the length of our rectangle is going to be 16.
00:36
So to find the area of that yellow region, we need to get the area of the rectangle, and subtract the area of the semicircle.
00:45
Let's put semicircle there.
00:47
So the area of a rectangle is length times width, and the area of the semicircle is going to be one -half the area of the circle.
00:55
We're going to subtract that.
00:56
Now let's put our numbers in...