Math problem

[Mao]

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.

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