00:01
Okay, so i see that you need help with these two questions and it wants you to find the area of the shaded region in each of the following figures.
00:08
So for the one on the top, you're going to find the area of the entire shape.
00:15
So okay, so from here to here is 21 and then we have 3 .5.
00:24
So i'm going to find the area of the entire shape.
00:28
So this is 50 from here to here and then 21 plus 3 .5 plus 3 .5, so that's 7.
00:37
So i have 28 divided by 2 and that is going to be 14.
00:46
So i'm going to do pi times 14 squared, which is 3 .14 times 14 times 14 and that's 615 .44 plus 50 times 7, which is 350.
01:13
So 350 plus 350 and so that's 965 .44 and no, wait a minute, that's not right.
01:28
That is not correct.
01:30
That's 50 times 28, 50 times 28.
01:34
So 50 times 28 is 1400.
01:41
So that's 2015 .44 and that's meters squared.
01:48
Then you have 50 times 21, that's 1050 and then we have 10 .5 squared times pi...