This Should Be Simple

  • Thread starter Whalstib
  • Start date
  • #1
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Main Question or Discussion Point

But I'm not getting it.

Is it possible to solve a right triangle give 3 angles and the area?

For instance 90-72-18, A=150.

What I'm trying to solve is a problem of squares to rectangles and vis versa using trigonometry. I'll use this to determine extension and contraction.

Thanks,

Warren
 

Answers and Replies

  • #2
disregardthat
Science Advisor
1,854
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Law of Sines will give you the relation between the sides, hence the sides up to a constant. Use the formula for area using two sides and their internal angle to determine this constant.
 
  • #3
119
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I was going in that direction but have only used this to solve SAS etc problems.

So far I have a/.31=b/.95=c/1


Could you elaborate please..

thanks,

Warren
 
  • #4
119
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Oh I got it!

Thanks!

Warren
 
  • #5
jhae2.718
Gold Member
1,161
20
Using [tex]A_{triangle} = \frac{1}{2}ab \sin(\gamma)[/tex], where a and b are sides of the triangle, and gamma is the angle between them should give you enough information to solve the triangle.

Edit: too late...
 

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