Question

Two tugboats that are a = 130 ft apart pull a barge, as shown. If the length of one cable is b = 218 ft and the length of the other is c = 230 ft, find the angle formed by the two cables.

Answer 1

Use law of cosines

Answer 2

yea i know i have to use law of cosines but i forgot my book in school and google confused me. do you mind if u solve it for me please

Answer 3

do you perhaps happen to know the formula i should use

Answer 4

\[a^2 = b^2 + c^2 - \sqrt{2bc \cos A}\]