Question

use you calculator to determine the value of sin 3.11, to three decimal places
should the cal bbe in rad mode or degree mode?

Answer 1

Most likely degree; if they give you pi, then it should be in radians.

Answer 2

I would tend to think that if it was in degrees they would have written:
\[\Large \sin 3.11^o\]With the little bubble to let you know it's degrees.
But whatev

Answer 3

Here's your answer, If it has the little bubble, you use degrees. IF THERE IS NO BUBBLE, IT IS RADIANS.