Video Description
Pool Table Reflections.
Source:
Jsteggs
In this construction we are looking at a billiards table and would like to have Ball C carom off of Wall X then Wall Y and hit Ball B. The steps to completing the construction are listed below:
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Sketch an approximate path the ball will take.
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Reflect B over Line (Wall) Y, label the new point B'.
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Reflect B' over Line (Wall) X, label the new point B''.
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Draw a projection line from Point (Ball) C to point B''. (Darken the actual path of the ball)
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Draw a projection line from the intersection of Line (Wall) X and the projection line from Step 4 to B'. (Darken the actual path of the ball)
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Connect the intersection
of Line (Wall) Y and the projection line from Step 5
to Point (Ball) B.
Pool
Pool, also known as pocket billiards, is the family of cue sports and games played on a pool table having six receptacles called pockets along the rails, into which balls are deposited as the main goal of play.
Reflection symmetry
Reflection symmetry, mirror symmetry, mirror-image symmetry, or bilateral symmetry is symmetry with respect to reflection.
In 1D, there is a point of symmetry. In 2D there is an axis of symmetry, in 3D a plane of symmetry.
