Question

Is this correct? :D

Answer 1

i dont think so

Answer 2

me either! ;)

Answer 3

it is 12(tan(45)).

Answer 4

How? :O Because when I do that I get 12, and it cant be the length of 12

Answer 5

It should be 12(tan(45)) because the formula for cos is:
\[\cos(\theta) = \left(\begin{matrix}a \\ h\end{matrix}\right)\]
So with this equation there is no way to find the height it is asking for.
However, the Tan formula is:
\[\tan(\theta) = \left(\begin{matrix}o \\ a\end{matrix}\right)\]
So multiplying the adjacent side (12) is going to get you:
\[12\tan(45) = o\]
And "o" in this case is the opposite side, the height it is asking for.