Question

What is the length of side AB if AC is 5 sqrt 2?

Answer 1

\[\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }\]

Answer 2

to find length of side AB you should know one angle and one side
so which function you should use
sin ,cos or tan ??