Identify the values of the variables. give your answers in simplest radical form.

First question:

By definition of sine and cosine, we have

Second question:

By definition of tangent, we have

Then by Pythagoras' theorem,

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

i believe the answer is the polygon, heptagon.