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Mathematics 14 Online
OpenStudy (anonymous):

Please help me out with Geometry Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of sin x° and cos y° share? A right triangle is shown with one leg measuring 4 and another leg measuring 3. The angle across from the leg measuring 3 is marked x degrees and the angle across from the leg measuring 4 is marked y degrees.

OpenStudy (bobo-i-bo):

Is this helpful: https://www.mathsisfun.com/algebra/sohcahtoa.html ?

OpenStudy (anonymous):

n-not really :)

OpenStudy (bobo-i-bo):

So... you wouldn't know how the lengths of the side of a right-angled triangle is related to the angles of the triangle by sin, cos and tan?

OpenStudy (anonymous):

So the first thing for me is first.... Adajcent, Opposite, and Hypotenuse

OpenStudy (anonymous):

I know a bit. I know how to determine Cos, Sin, and whatever others are related to Geometry. I have the equations written right next to me. The Adjacent is 3, the opposite is 4, and the hypotenuse is 5

OpenStudy (anonymous):

@Bobo-i-bo ?

OpenStudy (anonymous):

That being said about the problem....whats next?

OpenStudy (bobo-i-bo):

Okay, so do you know that sin(x)=adjacent/hypothenuse?

OpenStudy (anonymous):

I thought it was opposite

OpenStudy (anonymous):

oops.

OpenStudy (bobo-i-bo):

Ooops, your right, it is opposite!

OpenStudy (anonymous):

aaah I'm so smart :D kidding

OpenStudy (bobo-i-bo):

So what is the "opposite" and what is the "hypothenuse" in relation to angle x?

OpenStudy (anonymous):

Okay wait...x is P? P would be where I have to compare?

OpenStudy (anonymous):

opp is 3 and hyp is 5 That never changes.

OpenStudy (anonymous):

The Hypotenuse I mean

OpenStudy (bobo-i-bo):

So can you figure out what sin(x) is equal to, knowing the sin formula and knowing what the opp and hyp is?

OpenStudy (anonymous):

3/5?

OpenStudy (bobo-i-bo):

:)

OpenStudy (anonymous):

okay... Now I'm lost. Whats next from there?

OpenStudy (bobo-i-bo):

So sin(x)=3/5

OpenStudy (bobo-i-bo):

Now the question also asks you to figure out cos(y). Can you do that?

OpenStudy (anonymous):

Yeah....*face palm* already did....3/5 also

OpenStudy (anonymous):

So that's part one? " Find the value of sin x° and cos y°." Or is that the whole thing? The relationship is that they are both the same.

OpenStudy (bobo-i-bo):

:)

OpenStudy (bobo-i-bo):

That seems to be all :)

OpenStudy (anonymous):

Really!? I did it? Holy crap I got it!! Haha! Thank you so so so much

OpenStudy (bobo-i-bo):

Haha, np ^_^

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