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Mathematics 16 Online
OpenStudy (anonymous):

Does anyone understand Trigonometric ratios and how to use them to solve for the angle measures and lengths of sides in a right triangle?

OpenStudy (anonymous):

Yea

OpenStudy (anonymous):

Can you help me?

OpenStudy (anonymous):

I can try, whats the question?

OpenStudy (anonymous):

In JKL solve for X. Triangle JKL where angle K is a right angle. KL measures 34. JL measures x. Angle L measures 27 degrees.

OpenStudy (anonymous):

I don't just want the answer I need some help understanding the whole process to get to the answer.

OpenStudy (anonymous):

Ok, gimme a sec to draw it out and figure it out

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

|dw:1398085986968:dw| is this what it looks like? If you have a picture

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

ok, well i was taught to use "sohcahtoa", if you dont understand, ill explain.

OpenStudy (anonymous):

I understand sohcahtoa, I just don't know what to do to find the length of the sides. When ever I put it into my calculator it comes up with a strange number that could never be the length

OpenStudy (anonymous):

If you're calculator is in Radian mode instead of Degrees, you're going to get a wrong answer. Is it a multiple choice or open response?

OpenStudy (anonymous):

It is in degrees and the question is multiple choice.

OpenStudy (anonymous):

I know that the ratio that i am using is cosine

OpenStudy (anonymous):

the choices are74.89 30.29 38.16 66.73

OpenStudy (anonymous):

|dw:1398086396122:dw|Is 38.2 or 38.16 on there, or something like that?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

38.16 : The answer

OpenStudy (anonymous):

how do you find the cosine 27?

OpenStudy (anonymous):

you do cosine of the angle

OpenStudy (anonymous):

when I put cosine then 27 into my calculator it gives me 0.8910065

OpenStudy (anonymous):

34/0.8910065=38.1590993

OpenStudy (anonymous):

Wait! Now i get it! Thanks!

OpenStudy (anonymous):

But how do you find the measurement of an angle?

OpenStudy (anonymous):

I am trying to find the measure of angle P

OpenStudy (anonymous):

just a second!

OpenStudy (anonymous):

its not letting me view it

OpenStudy (anonymous):

P to Q is 33.8 and the hypotenuse is 57.6 and angle P is right above the right angle

OpenStudy (anonymous):

can you draw it out?

OpenStudy (anonymous):

|dw:1398086982940:dw|

OpenStudy (anonymous):

the comma is a point

OpenStudy (anonymous):

multiple choice?

OpenStudy (anonymous):

Yes 30.4° 59.6° 35.9° 54.1°

OpenStudy (anonymous):

54.1

OpenStudy (anonymous):

Do you wannna know how to get the answer?

OpenStudy (anonymous):

Well, you have to use the inverse cosine, leaving class now, glad I could help you out! :)

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