# distance between a beam and cables

• April 8th 2008, 03:45 PM
veronica mars
distance between a beam and cables
a weight is supported by cables attached to both ends of a balance beam, as shown in the figure. What anles are formed between the beam and the cables?

http://i137.photobucket.com/albums/q...aface09/47.jpg
• April 8th 2008, 05:40 PM
Mathstud28
Quote:

Originally Posted by veronica mars
a weight is supported by cables attached to both ends of a balance beam, as shown in the figure. What anles are formed between the beam and the cables?

http://i137.photobucket.com/albums/q...aface09/47.jpg

use the converse of the law of cosines $arccos\bigg[\frac{c^2-a^2-b^2}{-2ab}\bigg]=\theta$