# Abscissa of a point of a circle

## Description

The abscissa of point of a circle, in an x–y Cartesian coordinate system, can be computed by the abscissa of the center of the circle, the radius and the angle that the ray from the center of the circle to the point makes with the x-axis

Related formulas## Variables

x | The abscissa of the point of the circle (m) |

a | The abscissa of the center of the circle (m) |

r | The radius of the circle (m) |

θ | The angle that the ray from the center of the circle to the point makes with the x-axis (radians) |