- #1

havechanged

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Thanks!

P.S I have done Soh Cah Toa during previous school years, but I never understood!

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- Thread starter havechanged
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- #1

havechanged

- 21

- 0

Thanks!

P.S I have done Soh Cah Toa during previous school years, but I never understood!

- #2

HallsofIvy

Science Advisor

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It might help if you specified on your triangle, which angle you are talking about "sin is opposite over hypotenuse" is non-sense until you specify the angle! Never say "sin". It is always sin OF A PARTICULAR ANGLE.

- #3

havechanged

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One angle of a right triangle is 20 degress. The length of the hypotenuse is 6 cm. How would I get the other two sides?

For the opposite side, would it be something like Sin20 is x/6?

It just doesn't make sense...What about the whole Sin is the square root of a plus b times a and b or something like that?

Thanks!

- #4

Integral

Staff Emeritus

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x= 6* Sin20 for the opposite side,

the adjacent side would be

y = 6* Cos20

I am not sure what your last comment is about, are you refering to the Pythagorean Theorm.

a

- #5

havechanged

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Thanks for the reply.

No, it wasn't the pathagorem theorum. I don't know what it was.

Thanks again!

No, it wasn't the pathagorem theorum. I don't know what it was.

Thanks again!

- #6

HallsofIvy

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Now THAT'S the part that doesn't make sense! I recommend you erase that from your mind immediately!

- #7

havechanged

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Ok, I will. If I do find out what I was thinking of, I'll post it!

- #8

TIMMYTANK

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your thinkin of 30 60 90 triangles. thats where the side across from the right angle ( hypotenuse) equals 2x. the side across from the 30 degree angle equals x and the side across from the 60 degree angle is x times the squareroot of 3

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