The kind of wave that is formed when a transverse wave and a longitudinal wave combine is surface wave.
A surface wave is a mechanical type of wave that propagates along the boundary between two different media.
When a mechanical wave travels at the interface between two media, a transverse wave and a longitudinal wave can combine to form a surface wave.
An example can be seen in ocean waves.
Thus, the kind of wave that is formed when a transverse wave and a longitudinal wave combine is surface wave.
Learn more about surface waves here: https://brainly.com/question/11750134