Final answer:
The question appears to involve finding angle measurements or vector components but cannot be answered properly due to a typo and lack of context.
Step-by-step explanation:
The question seems to be related to solving geometric problems, likely concerning angle measurements or vectors. However, there is a typo in the question which makes it unclear what m29 and m/12 are supposed to represent. Without additional context or clear variables, providing an accurate answer is not possible. You may be referring to measure of angles or vector components, but without proper notation or context, we cannot proceed with a solution.