7 divided by 900 please help this question is annoying

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

We just started the introduction into circles and i have no idea how to do this.