Which cutting technique involves cutting all of the hair at a 90-degree elevation to achieve uniform length?

The technique that involves cutting all of the hair at a 90-degree elevation to achieve uniform length is the uniform layered cut. This method is characterized by lifting the hair at a 90-degree angle from the scalp, which ensures that all sections are cut to the same length. This results in a consistent and balanced look throughout the hair.

In a uniform layered cut, each section of hair is elevated to the same angle, which produces a blunt, clean line. This technique allows for the creation of layers that are even all around, providing the hair with movement while maintaining a consistent length. It is commonly used for clients who desire a full, voluminous appearance and an overall symmetrical shape.

The other techniques, while effective for their specific purposes, do not follow the same elevation method. For instance, textured cuts involve varying lengths and textures to create dimension rather than a uniform length. Graduated cuts have different lengths and are typically used to create volume and shape, and point cuts are more about the finishing technique to remove bulk or soften the edges. Thus, the uniform layered cut is the correct choice for achieving uniform length when cutting hair at a 90-degree angle.