Final answer:
Engineers are professionals who most directly use geometry in their work.
Step-by-step explanation:
The professional who most directly uses geometry is an engineer.
Engineers often use geometry in their work to design and analyze structures, create blueprints, and solve problems related to spatial relationships. For example, civil engineers use geometry to calculate the angles and dimensions of bridges and buildings, while mechanical engineers use geometry to design and analyze the shape and movement of mechanical parts.
Geometry is also used in various engineering fields such as aerospace engineering, electrical engineering, and computer engineering. For instance, aerospace engineers use geometry to determine the optimal shape and placement of aircraft components, while electrical engineers use geometry to design and analyze circuit layouts.