This article discusses the role of the three components of executive functions (EF) in geometric understanding. Discussing several examples of geometry problems, this article shows how EF are actively employed to solve geometry problems. Inhibition as the first component of EF helps the individual to suppress contextually irrelevant information. This strengthens the degree of focus on what is relevant to the problem being solved. In some geometry problems, the individual needs to rotate or manipulate shapes in her/his mind. Working memory as the second component of EF keeps a mental image of various positions of the rotating shape before rotation, after rotation, and during rotation. Keeping a clear mental image of these positions and comparing them with each other could facilitate the process of relating inferences to each other throughout the process of solving a geometry problem. Cognitive flexibility as the third component of EF helps the individual in the process of shift of attention between various parts of geometric shapes. Finally, it is suggested that the components of EF are in active collaboration with other cognitive resources such as the motor system in the process of solving geometry problems.