Problem 6. A triangle AMB is shown. The base AB has length 16. The angle at M is 90 degrees.

The provided image for problem 6 shows a triangle AMB with the base AB of length 16 and a right angle at M. Without additional information such as the lengths of AM or MB, or angles at A or B, it is impossible to determine specific properties or solve for unknown values. This appears to be an incomplete geometry problem statement.