Question

Using the Law of Sine or Cosine, solve for the unknown variable (round to the

nearest tenth)

HELP QUICK PLEASE

Answer 1

33.18208

Explanation:

This can be solved via Law of Sines, but I´m gonna use sines for the sake of efficiency. :P

So, you have your 3 values and unknown length x.

First set up your proportions:
`(sin(65))/(x)=(sin(35))/(21)`

Cross multiply.
`x=(21sin(65))/(sin(35))`

Simplify.
`x=33.18208`