Laws of the Game
6. The penalty area
Two lines are drawn at right angles to the goal line, 16.5 cm (1.80 yds) from the inside of each goalpost. These lines extend into the field of play for 16.5 cm (1.80 yds) and are joined by a line drawn parallel with the goal line. The area bounded by these lines and the goal line is the penalty area.
Within each penalty area, a penalty mark is made 11 cm (0.12 yds) from the midpoint between the goalposts.
An arc of a circle with a radius of 9.15 cm (0.10 yds) from the centre of each penalty mark is drawn outside the penalty area