Has it been a long time since high school geometry? Maybe you never paid much attention? Refresh some useful 4-way vocabulary terms to avoid looking lost on the creeper pad.

Parallel/Perpendicular

These words most commonly are used when talking about your angle relative to someone else.

Perpendicular – two lines which cross to form a 90-degree angle

 

Parallel – two infinite lines that do not intersect at any point

 

Degrees

Most commonly used terms for turning. It can also refer to your position relative to an airframe, or the angle of movement in a block.

90 degrees	180 degrees	270 degrees	360 degrees	540 degrees	720 degrees
1/4 turn	1/2 turn	3/4 turn	1 full turn	1 1/2 turn	2 full turns

 

30 degrees	45 degrees	60 degrees

 

 

Acute/Obtuse

Acute angles are small angles less than 90 degrees.

 

An obtuse angle has a measurement greater than 90 degrees but less than 180 degrees.

 

 

 

 

 

 

 

Right/Left

See Obtuse

 

Hopefully, this clarifies a few common terms that can be used to articulate formations with precision!