Question

Find the value of e.

Answer 1

Use the law of sines! ^_^

\[ \frac{sin P}{p} = \frac{sin E}{e} \]

Answer 2

How does this work?

Answer 3

Like, how do you derive it? Or how do you solve it?

You're given angle P, side p, and angle E, so e is the only unknown

\[ e = \frac{p \sin E}{\sin P} \]

Answer 4

I meant how to solve it. would it be \[{ 40 \sin 55 }/{\sin 40 }\]

Answer 5

Side length p (little p) is 12, not 40 ^_^

\[ e = \frac{12 \sin 55}{\sin 40}\]

Answer 6

I got 15.3, is that correct?

Answer 7

that's what I'm gettin ^_^

Answer 8

Thank you!