Alright, I have a curiosity regarding something and it all comes down to a basic problem of geometry (and trigonometry). I finished my studies 4 years ago and since then I never touched math problems because I simply <strike>don't like</strike> hate it.
I think it's a simple problem but there's something that I miss and I simply can't do it. So:
You have a triangle. One angle is 90°, another one is 55° (so the remaining one should be 35°, right?). You know one of the cathetus being 10 cm and you need to find the hypotenuse.
easy.
Let's call the cathetus a and the hypotenuse c
a / sin opposite angle = c / sin 90 (I don't know what of those two the opposite angle is because you didn't provide that information)
now just change the equation that c (the hypotenuse we're searching for) is on one side and the all the other stuff on the other.
You should end up with something like this
a / sin opposite angle * sin 90 = c
Edit: here the wikipedia article if you wanna read up on the subject:
http://en.wikipedia.org/wiki/Law_of_sines
sin 90° = 1 ?
How do you calculate sin of something that's not a common value? Like sin 35°?
Why not use a calculator?
It's been 8 years since I went to school, but does this help?
The Sine and Cosine Rule
and the Jingle:
Some
Old
Hags
Can
Always
Hide
Their
Old
Age
Sine = Opp/Hyp Cos = Adj/Hyp Tan = Opp/Adj
Got it!
This is the result: 17.543859649122807017543859649123:yahoo:
That formula solved it. I forgot it existed. Thanks for the help!
' Wrote:
That formula solved it. I forgot it existed. Thanks for the help!
Please don't bring the horrors of my traumatic childhood back to these forums again mkay?:P
Sorry but it had to be done.:lol:So damn simple...