# dependence sides of triangle

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• Jul 13th 2013, 09:46 AM
razera
dependence sides of triangle
Hi, in my opinion theres now way to find dependence between sides of triangle different-arms without knowing the angle of triangle.
I mean exemp. a / c = b / h
• Jul 13th 2013, 10:06 AM
HallsofIvy
Re: dependence sides of triangle
Okay, please explain your opinion! Are a, b, and c here the lengths of the sides of the triangles, and h the length of an altitude? If so which altitude? The one perpendicular to the side of length b?

Apparently not, since in an equilateral triangle, with sides of length s, the altitude has length $\sqrt{3}s/2$. a/c= s/s= 1 but $b/h=s/(\sqrt{3}s/2)= 2/\sqrt{3}$