Geometry in the Real WORLD

By: Dylan Herbert Littlejohn

Of your fourth period

On A-days

Point

• The base is a point• Names a location,

has no size

Line

• The foul line is a line• Straight path with no

thickness, extends forever

Plane

• The baseball diamond is a plane

• Flat surface that extends forever and has no thickness

Angle

• From second to third to home forms an angle

• Figure formed by two rays with a common endpoint

Perpendicular Lines

• From third to first and then second to home form perpendicular lines

• Lines intersecting at 90 degrees

Parallel Lines

• From third to second then home to first form parallel lines

• Lines in the same plane that do not intersect

Triangle

• From foul pole to foul pole to second and second to foul pole form a triangle

• Three sided polygon

Right Triangle

• From second to first to home and home to second form a right triangle

• Triangle with one right angle

Pentagon

• Home plate is a pentagon

• Five sided polygon

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

Square

• The baseball diamond forms a square

• Quadrilateral with four congruent sides and four right angles

Rectangle

• The dugout is a rectangle

Quadrilateral with four right Quadrilateral with four right anglesangles

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

Parallelogram

• From the pitcher to field umpire to first baseman to second baseman forms a parallelogram

• A quadrilateral with two pairs of parallel sides

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

Cylinder

• Pine tar sticks are cylinders

• 3 dimensional figure with 2 parallel congruent circular bases and a curved lateral surface that connects the bases

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

Decagon

• The star in Houston’s hat is a decagon

• Ten sided polygon

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

20-Gon

• A baseball player’s tooth is an example of a twenty-gon

• Twenty sided figure

FUN BASEBALL ATHLETES