Question

Am I right???

Answer 1

no

Answer 2

For both???

Answer 3

I'm pretty sure that I'm right on the second one

Answer 4

yes Q5 is correct

Answer 5

I agree with phi, #4 is incorrect while #5 is correct

Answer 6

How do I solve #4?

Answer 7

use the law of sines to solve for B

sin(45)/13.5 = sin(B)/18

Answer 8

But, I only have one angle, how would I be able to find it, because I put that in and I got 0.05237828009 and I know that that is not right

Answer 9

sin(45)/13.5 = sin(B)/18
18*sin(45)/13.5 = sin(B)
arcsin(18*sin(45)/13.5) = B
70.5287793655093 = B
B = 70.5287793655093
B = 70.5

Notice how the missing angle is 180-45-70.5 = 64.5 which is a positive number.

So B = 70.5 is possible

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Now subtract 70.5 from 180

180 - 70.5 = 109.5

Notice how the missing angle is 180-45-109.5 = 25.5 which is a positive number.

So B' = 109.5 is also possible