I get a 0 for one side of a triangle?

G

Guest

Guest
Hi,

Heres the problem and my attempt:

scan0001xu3.gif


As you can see, I got y = 0?

I doubled checked...I don't see anything wrong with my calculations?

Thanks!
 
You can't solve an (Angle Angle Angle) triangle for a numerical value for side: your sides could be of any length :)

But you could say that y = c*Sin(47) (c being the side opp to angle C)

Sin(47) = y/c
cSin(47) = y
 
You're claiming that tan(47) (y/x) is zero, which isn't true. I don't really understand your working.
 
I'm assuming you multipled both sides of \(\displaystyle \L\ -x + 0.93y = 0\) by 1.07 in your fifth last line. Your third last line is incorrect, if so. Even if you did it correctly, your third last line would give 0.9951y - y = 0 because you've worked with approximations since the beggining, causing a large error in calculations. It should've given y - y = 0, which is of course true, but sheds no light on anything. jwpaine is right; there is no unique triangle whose inner angles are 90, 43 and 47.
 
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