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A volleyball is a ball used to play indoor volleyball, beach volleyball, or other less common variations of the sport. Volleyballs are spherical in shape and typically comprise eighteen nearly rectangular panels made from synthetic or genuine leather. These panels are organized into six identical sections, each consisting of three panels.
In geometry, the sagitta (sometimes abbreviated as sag [1]) of a circular arc is the distance from the midpoint of the arc to the midpoint of its chord. [2] It is used extensively in architecture when calculating the arc necessary to span a certain height and distance and also in optics where it is used to find the depth of a spherical mirror ...
Volumes of balls in dimensions 0 through 25; unit ball in red. In geometry, a ball is a region in a space comprising all points within a fixed distance, called the radius, from a given point; that is, it is the region enclosed by a sphere or hypersphere. An n-ball is a ball in an n-dimensional Euclidean space.
The court is made of cement and has the same dimensions: 18 meters long and 9 meters wide; The game is played with a mikasa ft-5 soccer ball. Games consist of two sets of 15 points. If both teams agree, they can alternatively play two sets of points with the option of a third tie-breaking set.
A ball in n dimensions is called a hyperball or n-ball and is bounded by a hypersphere or (n−1)-sphere. Thus, for example, a ball in the Euclidean plane is the same thing as a disk, the area bounded by a circle. In Euclidean 3-space, a ball is taken to be the volume bounded by a 2-dimensional sphere. In a one-dimensional space, a ball is a ...
The court has an area of 13.4 by 6.1 metres (44 ft × 20 ft) free from all obstacles up to the height of 8 metres (26 ft) measured from the floor surface (sand and grass court not advisable). The width of the lines bounding the court should not be more than 4 centimetres (1.6 in) measured and drawn inwards from the edge of the court measurements.
A Pipe Attack is when the center player in the back row attacks the ball. Line and Cross-court Shot: refers to whether the ball flies in a straight trajectory parallel to the sidelines, or crosses through the court in an angle. A cross-court shot with a very pronounced angle, resulting in the ball landing near the 3-meter line, is called a cut ...
The beach volleyball court dimension was reduced from the indoor court size of 9 m × 18 m (29.5 ft × 59.1 ft) to 8 m × 16 m (26.2 ft × 52.5 ft), and the scoring system was changed from sideout scoring, wherein only the serving team can score a point, to rally scoring, wherein a point is scored on every serve. [22]
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