Question

In triangle ABC, what is the length of side b if B = 10°, C = 135°, and c = 45?

3.24

3.33

3.82

11.05

Answer 1

apply law of sins:
sinC/c = sinB/b

Answer 2

I set it up like this and got http://www.wolframalpha.com/input/?i=sin^-1%28sin135%2810%29%2F%2845

Answer 3

Yeah, looks the right way.

Answer 4

it looks the right way but..

Answer 5

You got me confused too.\[b = \frac {\sin{\beta} \times c}{\sin{\gamma}}\]

Answer 6

you know what I have no idea no more

Answer 7

The law says that the ratio between lenght and sin of the opposed angle is the same for all three sides / angles.

Answer 8

im brain dead now