Question

Okay, I need some explanation.

For the law of sines, how do you figure out if there is no triangle, 1 triangle or 2 triangles.
For example, given that a = 3, b = 2, A = 50°, how many triangles does this form?

Answer 1

:)
1st we gotta know the cosine formula
you know it?

Answer 2

hello alivejeremy

Answer 3

hello

Answer 4

I haven't learned the cosine formula yet, nor do I think you need to know it to figure this out, but my teacher said to subtract the angle that you find from 180 or something like that. Sorry ahhhh

Answer 5

this might help http://home.windstream.net/okrebs/page93.html

Answer 6

lol nice job google searching @alivejeremy

Answer 7

I have already tried that.

Answer 8

oh

Answer 9

i got one more

Answer 10

http://www.themathpage.com/atrig/law-of-sines.htm

Answer 11

http://2000clicks.com/mathhelp/GeometryLawOfSines.aspx

Answer 12

1/10 rating for you @alivejeremy

Answer 13

what

Answer 14

I don't understand the ambiguous case :( Please...

Answer 15

LAW OF SINES
\(\sf \dfrac{sin~A}{a}=\dfrac{sin~B}{b}=\dfrac{sin~C}{c}\)

Answer 16

Remember that the angles are in degrees, so if you are using a calculator, make sure you set it accordingly.

\(\sf \dfrac{sin(30)}{a} = \dfrac{sin(55)}{6} \)

either take the reciprocal of both sides which will give
\(\sf \dfrac{a}{sin(30)} = \dfrac{6}{sin(55)} \)

then solve for a
\(\sf \dfrac{a}{sin(30)} \times sin(30) = \dfrac{6}{sin(55)} \times sin(30) \)

Answer 17

or you can automatically cross-multiply then solve for a

Answer 18

this is an example, review it and then try your problem

Answer 19

Thanks for your effort @hwyl I will review it :)

Answer 20

if you run into trouble applying or understanding, let us know or let me know and then we can perhaps break it down further.

Answer 21

It is important to ask questions and with this example, I am expecting that you would ask a question. I won't point out now since you might figure it out yourself.