The answer is Wavelength because the wavelength of a wave is the distance between a point on one wave and the same point on the next wave. The easiest way to find the wavelength of the wave is by choosing the Crest of one wave and find the distance of that point to the Crest of the next wave.
<h2>hope the above answer helps</h2><h2>please rate and mark brainliest!!!</h2>
