Answers

2014-03-17T19:01:41+08:00
The problem looks like this. 

Since we're dealing with an angle, its opposite and hypotenuse, therefore, we should use SINE.

=> sin(angle)= \frac{opposite}{hypotenuse}
=> sin(30)= \frac{x}{120}

Then solve for x. :)
Hint: It is a fraction.
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