1. Geometry Found in Sports By Kevin Birdwhistell and Braxton Hill

2. Example No.1: Circle Circle: A plane curve everywhere equidistant from a given fixed point, the center. The circle is found at the very center of the court on the half-court line.

3. Ex. 2: Rectangle A rectangle is a four-sided polygon (a flat shape with straight sides) where every angle is a right angle (90°). The whole field is a rectangle. Including the yard lines and the end zone.

4. Ex.3: Semicircle A half of a circle as divided by a diameter. The top of the key is a semicircle.

5. Ex.4: Parallel Lines Side by side lines having the same distance continuously between them Each yard line of a football field is parallel to another.

6. Ex.5: Square A plane figure with four equal straight sides and four right angles. The target on the center of the backboard is a square.

7. Ex.6: Point A particular spot, place, or position in an area The bases on a baseball field are points.

8. Ex.7: Sphere a round solid figure, or its surface, with every point on its surface equidistant from its center. A basketball is a sphere.

9. Ex.8: Concentric Circle Denoting circles, arcs, or other shapes that share the same center, the larger often completely surrounding the smaller The target in archery is a concentric circle

10. Ex.9: Cylinder The arrows body is a thin cylinder. solid geometric figure with straight parallel sides and a circular or oval section.

11. Ex.10: Octagon A plane figure with eight straight sides and eight angles. In UFC the ring is an octagon.

12. Ex.11: Pentagon A plane figure with five straight sides and five angles. The black spots on a soccer ball are pentagons.

13. Ex.12: Cone In many agility sports conditioning they use cones as an obstacle. A solid or hollow object that tapers from a circular or roughly circular base to a point.

14. Resources: Dictionary App