Final answer:
Without additional context or a specific equation, it's not possible to solve for m based on the given values of n and l.
Step-by-step explanation:
The question seems to lack sufficient context to provide an exact value for m. In mathematics, variables represent unknown quantities and without an equation or additional information that relates n, l, and m, it is not possible to solve for m based on the values of n = 37 cm and l = 12 cm. However, if we consider geometry and assume that n, l, and m are lengths of sides of a rectangle or other geometric shape, additional information such as an equation relating these sides, or knowledge about the properties of that shape, would be required to calculate the length of m.