A radial line is a line passing through the center of a circle or sphere. The correct `direction` of the radial line is from the radius point to a point on the arc or circle. This applies to its use in surveying. ... Found on http://en.wikipedia.org/wiki/Radial_line
A radial line is a line passing through the center of a circle or sphere. The correct `direction` of the radial line is from the radius point to a point on the arc or circle. This applies to its use in surveying. ...