To start a mène (end, round) the winning team places the circle and then throws out the jack to a distance of 6 to 10 meters.
Article 7 says: “The distance that separates [the jack] from the interior edge of the throwing circle must be 6 meters minimum and 10 meters maximum for Juniors and Seniors.” In petanque, when measuring the distance between two objects, you always measure the shortest distance between the objects. So the rule says that the shortest distance between the inside edge of the circle and the front of the jack must be no less than 6 meters and no more than 10 meters.
The front edges of the two jacks in the picture (below) are at exactly 6 meters and 10 meters from the circle. Both jacks are valid. If the jack at 6m was a little closer to the circle, it would not be valid because the distance would be less than 6m. If the jack at 10m was a little farther from the circle, it would not be valid because the distance would be more than 10m.
It is important to be clear about the fact that the wording of the rule uses the concept of distance, not of area. The distance between the circle and the jack must be between 6 and 10 meters. Some players confuse this with the rule about a boule straddling the boundary line of a marked playing area. They imagine an area with boundaries at 6 and 10 meters from the circle, and think that the rule says that the jack must be at least partially inside the boundaries of that area in order to be valid.
Imagine a square on the lane going from 6 to 10 meters from the circle. When you throw the jack it is valid when even the smallest part of the jack is in the square, like a boule’s validity until it totally passes the dead-ball line.
According to this mental model the jacks straddling the “lines” in the above drawing are valid. In fact, however, there are no lines on the ground to be straddled. The jack at about 10 meters IS valid because it does not exceed the maximum allowable distance, but the jack at about 6m is NOT valid because it is less than the minimum allowable distance.
Sometimes players express the same confusion by asking: “Does ‘between 6 and 10 meters’ mean between 6 and 10 meters as measured to the front of the jack or to its back?” Again: in petanque, when measuring the distance between two objects, you always measure the shortest distance between the objects. So the answer is: the FRONT of the jack.