For the Olympics and World Tournaments, the dimensions of basketball court areans.

The dimensions of a basketball court for the Olympics and World Tournaments are as follows:

1. Length: The total length of the court is 28 meters (approximately 91.86 feet).

2. Width: The total width of the court is 15 meters (approximately 49.21 feet).

3. Three-Point Line: The distance of the three-point line from the center of the basket varies. On the sides of the court, it is 6.75 meters (approximately 22.15 feet). In the corners, the distance is a minimum of 0.9 meters (approximately 2.95 feet).

4. Free-Throw Line: The free-throw line is 5.8 meters (approximately 19.02 feet) from the baseline and 4.6 meters (approximately 15.09 feet) from the center of the basket.

5. Key (also known as the "Paint" or "Lane"): The key is a rectangle that is 4.9 meters (approximately 16.08 feet) wide and 5.8 meters (approximately 19.02 feet) long.

6. Backboard: The backboard is 1.8 meters (approximately 5.9 feet) wide and 1.05 meters (approximately 3.44 feet) high. The rim of the basket is 3.05 meters (approximately 10 feet) off the ground.

These dimensions are set by the International Basketball Federation (FIBA) and are used in international competitions including the Olympics and World Tournaments.