Help finding sides with other angles of other triangles nearby
http://i.imgur.com/h83RV.png
I have to find side 'R'
L = 6.10 meters, theta = 36.9 degrees, and phi = 53.1 degrees.
I don't see any way I can attempt this, I'm very rusty with my trig. We have a known side and a right angle, but I don't see how I can make any other angles (since we only have one side I'm assuming I need to get an angle somewhere
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Re: Help finding sides with other angles of other triangles nearby
Quote:
Originally Posted by
PhizKid 
http://i.imgur.com/h83RV.png
I have to find side 'R'
L = 6.10 meters, theta = 36.9 degrees, and phi = 53.1 degrees.
I don't see any way I can attempt this, I'm very rusty with my trig. We have a known side and a right angle, but I don't see how I can make any other angles (since we only have one side I'm assuming I need to get an angle somewhere
1. I've modified your sketch a little bit (see attachment
2. According to the definition of the Sine function in a right triangle you'll get:
)
3. Since L and 
are known you can determine R.
Re: Help finding sides with other angles of other triangles nearby
Sorry but this line should read:
)
