# Math Help - Trig Explanation

1. ## Trig Explanation

Hi, I need help with this problem. I have put it in an attachment. I don't understand it so if you would explain it that would be very appreciated. Thanks in advanced

2. ## Re: Trig Explanation

Originally Posted by dan713
Hi, I need help with this problem. I have put it in an attachment. I don't understand it so if you would explain it that would be very appreciated. Thanks in advanced
Draw a sketch.

Actually you are dealing with 2 right triangles, a light grey one and a dark grey one. (see attachment)

Equal lengthes are drawn in red.