Question

In a poem, each line includes four metrical feet. This creates what kind of meter?

Answer 1

Without knowing what type of foot, all we know is that it is tetrameter.

Explanation:

Usually meter is described by the type of foot, followed by the number of feet in a line. For instance, trochaic pentameter is made of five trochees per line.

A poem with four feet in a line is tetrameter.