00:01
In the first case, our overall would be base times height.
00:06
That's if it's all shaded, that would be 12 times 10.
00:11
Excuse me, no it isn't.
00:13
It's 12 by 12, which is 144.
00:17
And then we're going to subtract our other parallelograms, which are base times height, six times a height of five.
00:26
That would be 30, and this would be the same 30.
00:30
So we're going to subtract 60 and 144 minus 60 is 84.
00:39
That would be square inches.
00:41
In number 11, the whole thing is a circle.
00:46
Pi times a radius of six if we know that the whole diameter is 12.
00:51
So pi times six squared.
00:53
And then we're going to subtract a circle.
00:57
If we put these two together, that's a circle radius three...