Equation for a circle
· Any co-ordinate that lies on the circumference of the circle is the radius to the origin.
· The radius is written using the length equation for a line segment.
· The equation for a circle with center at the origin is as follows:
· The radius is written using the length equation for a line segment.
· The equation for a circle with center at the origin is as follows:
· The equation for a circle is as follows, where r is the radius.
· Co-ordinates positions relatively to the equation of the circle are:
o If a co-ordinate satisfies the equation of a circle then the co-ordinates lines on the circumference of the circle.
o If a co-ordinate turns to be higher than the radius, then that point lies on the outside.
o If a co-ordinate turns to be lower than the radius, then that point lies in the circle.
· Chord is a line segment that connects two ends of a curve (or circle).
o If a co-ordinate satisfies the equation of a circle then the co-ordinates lines on the circumference of the circle.
o If a co-ordinate turns to be higher than the radius, then that point lies on the outside.
o If a co-ordinate turns to be lower than the radius, then that point lies in the circle.
· Chord is a line segment that connects two ends of a curve (or circle).