The document provides examples of common geometric shapes found in baseball, including lines, planes, angles, triangles, circles, cylinders, spheres, polygons with various numbers of sides, arcs, and parallelograms. Specific examples mentioned include the baseball diamond, bases, dugouts, on deck circle, pine tar sticks, baseballs, logos, fences, and a tooth. The document aims to illustrate how geometry appears throughout baseball.

1. Geometry in the Real WORLD By: Dylan Herbert Littlejohn Of your fourth period On A-days

2. Point The base is a point Names a location, has no size

3. Line The foul line is a line Straight path with no thickness, extends forever

4. Plane The baseball diamond is a plane Flat surface that extends forever and has no thickness

5. Angle From second to third to home forms an angle Figure formed by two rays with a common endpoint

6. Perpendicular Lines From third to first and then second to home form perpendicular lines Lines intersecting at 90 degrees

7. Parallel Lines From third to second then home to first form parallel lines Lines in the same plane that do not intersect

8. Triangle From foul pole to foul pole to second and second to foul pole form a triangle Three sided polygon

9. Right Triangle From second to first to home and home to second form a right triangle Triangle with one right angle

10. Pentagon Home plate is a pentagon Five sided polygon

11. Hexagon From foul pole to third to home to first to second to foul pole and back to the original foul pole form a hexagon Six sided polygon

12. Square The baseball diamond forms a square Quadrilateral with four congruent sides and four right angles

13. Rectangle The dugout is a rectangle Quadrilateral with four right angles

14. Trapezoid From the front corner of visitor’s dugout to the front corner of home’s to back right of home’s to back left of visitor’s to the front corner forms a trapezoid Quadrilateral with exactly one pair of parallel sides

15. Parallelogram From the pitcher to field umpire to first baseman to second baseman forms a parallelogram A quadrilateral with two pairs of parallel sides

16. Circle The on deck circle is a circle Set of points in a plane that are a fixed difference from the point called the center of a circle

17. Cylinder Pine tar sticks are cylinders 3 dimensional figure with 2 parallel congruent circular bases and a curved lateral surface that connects the bases

18. Sphere A baseball is a sphere Set of points in space that are a fixed difference from a point called the center of a sphere

19. Decagon The star in Houston’s hat is a decagon Ten sided polygon

20. Arc The outfield fence is an arc Unbroken part of a circle consisting of two points on the circle, called the endpoints, and all the points on the circle between them

21. 20-Gon A baseball player’s tooth is an example of a twenty-gon Twenty sided figure

22. FUN BASEBALL ATHLETES