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Posted Oct 28/15 - Geometry and Football work together

Geometry terms and definitions

RDFA ACADEMY TEAMS USE THESE ANGLES IN FOOTWORK DRILLS AND PLAYBOOK

 

Term

Definition/ Description

 

Point

A location in space - a dot on a piece of paper

 

Line

Connects two points via the shortest path and continues indefinitely (forever) in both directions

http://www.helpingwithmath.com/images/geoterm_line.gif

Line Segment

Part of a line between two points

http://www.helpingwithmath.com/images/geoterm_lineseg.gif

Perpendicular Line Segment

Line Segments that intersect (cross) at an angle of 90°

http://www.helpingwithmath.com/images/geoterm_perp.gif

Parallel Line Segments

Line segments that never intersect (they are always the same distance apart)

http://www.helpingwithmath.com/images/geoterm_para.gif

Right Angle

An angle that measures 90°

http://www.helpingwithmath.com/images/geoterm_righta.gif

Acute Angle

An angle that measures less than 90°

http://www.helpingwithmath.com/images/geoterm_acutea.gif

Obtuse Angle

An angle that measures more than 90°

http://www.helpingwithmath.com/images/geoterm_obtusea.gif

Vertex

Point at which two line segments intersect (forming an angle)

http://www.helpingwithmath.com/images/geoterm_vertex.gif

 

Scalene Triangle

A triangle with all three sides with different lengths

http://www.helpingwithmath.com/images/geoterm_scalene.gif

Isosceles Triangle

A triangle with two equal length sides (and two equal internal angles)

http://www.helpingwithmath.com/images/geoterm_isosoc.gif

Equilateral Triangle

A triangle with all three sides of equal length (each internal angles = 60°)

http://www.helpingwithmath.com/images/geoterm_equil.gif

Radius

Distance (line segment) from center of a circle to any point on that circle's circumference.

http://www.helpingwithmath.com/images/geoterm_rad.gif

Diameter

A line segment (or length) joining two points on a circles circumference and passes through the circle's center (twice the length of the radius)

http://www.helpingwithmath.com/images/geoterm_diam.gif

Circumference

Distance around a circle (the perimeter)

 

Chord

A line segment joining two points on a curve.

http://www.helpingwithmath.com/images/geoterm_chord.gif

Arc

Part of a curve

http://www.helpingwithmath.com/images/geoterm_arc.gif

 

 



 


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