Final answer:
In soccer, a goalkeeper is permitted to have "possession" of the ball using a body part other than their hands within their own penalty area.
Step-by-step explanation:
In soccer, the goalkeeper is allowed to have "possession" of the ball using any part of their body, except for their hands, within their own penalty area. So, if the goalkeeper were to use their feet, knees, chest, or any other body part to control the ball, it would be considered legal.
For example, if the goalkeeper were to kick the ball into the air and then catch it with their chest, it would be permitted. However, once the goalkeeper steps outside of their penalty area, they are no longer restricted from using their hands.