00:01
According to given question, we have a is equal to 6, c equal to 5, and angle b is equal to 50 degrees.
00:09
Now we have to find the values of other parameters.
00:12
So first of all we will apply cosine rule.
00:15
So using cosine rule, we will find b.
00:19
So here we will write b squared is equal to a square plus c squared minus 2 ac cos b.
00:27
So that means this is 6 square plus 5 square minus 2, 6 multiplied with 5 cost 50 degree.
00:37
So this is 36 plus 25 minus 60 cost 50 degree.
00:45
This we can write as 22 .43.
00:50
So b squared is 22 .43.
00:53
That means b is equal to root under 22 .43.
00:57
Which is approximate value we can write as up to 1 decimal 4 .7.
01:02
Now using sine root we will find the angles...