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September 22nd, 2009, 08:40 AM  #1 
Newbie Joined: Sep 2009 Posts: 2 Thanks: 0  solve a triangle with only two known variables
hello all, i don't think this is possible but does anyone know how to solve a right triangle when only one leg is known? i am mainly interested in the resulting hypotenuse of the triangle. thanks in advance. 
September 22nd, 2009, 11:57 AM  #2 
Newbie Joined: Sep 2009 Posts: 27 Thanks: 1  Re: solve a triangle with only two known variables
you will need to know another angle apart from the 90 degree or at least the size of another of the sides

September 22nd, 2009, 12:12 PM  #3 
Newbie Joined: Sep 2009 Posts: 2 Thanks: 0  Re: solve a triangle with only two known variables
that is what i was afraid of... i was hoping someone had found some new triangle magic the world hadn't heard of yet. 
September 24th, 2009, 09:37 AM  #4 
Newbie Joined: Sep 2009 From: Brazil Posts: 3 Thanks: 0  Re: solve a triangle with only two known variables
If you know any tangent, cossen, sen, maybe.

September 24th, 2009, 11:51 AM  #5  
Newbie Joined: Sep 2009 Posts: 27 Thanks: 1  Re: solve a triangle with only two known variables Quote:
With only one known side and knowing it's a right angle, the other sides could be any value from nearly 0 to infinity and the angle between them could be in the range 0 < angle < 90 So, since there are many possible results, you cannot find a value for the hypotenuse if you don't know both the adjacent and opposite sides or one of those and the angle between it and the hypotenuse  
September 25th, 2009, 08:11 AM  #6 
Global Moderator Joined: Dec 2006 Posts: 20,746 Thanks: 2133 
You could also succeed if you were given the area of the triangle (as well as one side or one acute angle).


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