R = 5729.58 / D

T = R * tan ( A/2 )

L = 100 * ( A/D )

LC = 2 * R *sin (A/2)

E = R ( (1/(cos (A/2) ) ) - 1 ) )

M = R ( 1 - cos (A/2) )

PC = PI - T

PT = PC + L

Where,

D = Degree of Curve, Arc Definition

1Â° = 1 Degree of Curve

2Â° = 2 Degrees of Curve

P.C. = Point of Curve

P.T. = Point of Tangent

P.I. = Point of Intersection

A = Intersection Angle, Angle between two tangents

L = Length of Curve, from P.C. to P.T.

T = Tangent Distance

E = External Distance

R = Radius

L.C. = Length of Long Chord

M = Length of Middle Ordinate

c = Length of Sub-Chord

k = Length of Arc for Sub-Chord

d = Angle of Sub-Chord