00:01
In the part a of the problem first we will draw the merisburg vortex.
00:07
So this is the figure we will name it as a b and c.
00:15
So this is the arm c this is the arm a and this is the arm b.
00:21
Here a is equal to 47 kilometer b is equal to 71 decimal 5 kilometer c is equal to 69 kilometer.
00:38
This is the merisburg vortex.
00:48
So now we go to the part b of the problem.
00:52
So here we will use the cosine formula using the cosine formula we can write that b square plus c square minus 2 b cos of angle a is equal to a square.
01:06
So we'll just rearrange and we get that cos of a is equals to b square plus c square minus a square divided by 2 b c.
01:22
So we can write that a or angle a is equals to cos inverse of b square plus c square minus a square divided by 2 b c.
01:36
So this is equals to 39 decimal 04 degrees.
01:43
We have got this after putting the values of angle c.
01:46
Therefore in the same way we can find out angle b.
01:48
Angle b is equals to 73 decimal 36 degrees and angle c is equals to 67 decimal 61 degree...