Question

Using rectangle ABCD, find the value of y to the nearest tenth.

Answer 1

Use trigonometric ratio for adjacent side and hypotenuse

Answer 2

what do you think you are suppposed to use. sin cos or tan?

Answer 3

\[\cos(\theta)=\frac{ adjacent }{ hypotenuse }\]\[\sin(\theta)=\frac{ opposite }{ hypotenuse }\]\[\tan(\theta)=\frac{ opposite }{ adjacent }\]The theta is given so you don't have to worry about that, and just use your concept for which sides has a value.