# Math Help - distance between a beam and cables

1. ## 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?

2. 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?

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