Plane Angle | The Units and Constants Handbook at KnowledgeDoor

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	Plane Angle
	Plane Angle

Characteristic		degree		Notes
Characteristic		degree		Notes
Symbol	°			Use "deg" for our conversion calculators.
Other Name	degree-of-arc
Metric (SI) Equivalent	1.745329252 centi radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	(pi / 180) * radian

Characteristic		gon		Notes
Characteristic		gon		Notes
Other Names	grad, gradian
Metric (SI) Equivalent	1.5707963268 centi radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	(pi / 200) * radian

Characteristic		mil-angle		Notes
Characteristic		mil-angle		Notes
Other Names	mil, artillery-mil
Metric (SI) Equivalent	981.74770425 micro radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	0.05625 degrees

Characteristic		minute-angle		Notes
Characteristic		minute-angle		Notes
Symbol	'
Other Names	arcmin, minute-of-arc, minute-of-angle
Metric (SI) Equivalent	290.88820867 micro radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	degree / 60

Characteristic		radian		Notes
Characteristic		radian		Notes
Symbol	rad
Other Name	r
Metric (SI) Equivalent	radian is a metric unit (in fact, it is a derived SI unit)
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.

Characteristic		revolution		Notes
Characteristic		revolution		Notes
Symbol	rev
Other Names	r, turn, tr
Metric (SI) Equivalent	62.831853072 deci radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	2 pi radians

Characteristic		second-angle		Notes
Characteristic		second-angle		Notes
Symbol	"
Other Names	arcs, arcsec, second-of-arc, second-of-angle
Metric (SI) Equivalent	4.8481368111 micro radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	minute-angle / 60

Characteristic		sign		Notes
Characteristic		sign		Notes
Metric (SI) Equivalent	5.235987756 deci radians			Even though the radian is a dimensionless derived unit and could be dropped, it is shown in this equivalent for clarity
Metric (SI) Dimensions	plane-angle			Even though plane-angle is not an official metric (SI) dimension and could be dropped, it is shown in the dimensions for clarity.
Description in Terms of Other Units and Constants	(pi / 6) * radian

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