CIRCLE:
CIRCLE A circle is the set of points that are equidistant from a special point in the plane called the center.
Did you know?:
Did you know? A circle represents a 360 º rotation around the center.
CHORD:
CHORD A chord of a circle is a line segment that connects one point on the edge of the circle with another point on the circle .
DIAMETER:
DIAMETER The diameter of a circle is a chord that passes through the center of the circle. It is the longest distance across a circle.
RADIUS:
RADIUS The radius of a circle is a line segment that goes from the center of the circle to the outside edge. 2r = d
ARC:
ARC An arc of a circle is a segment of the circumference of the circle.
CENTRAL ANGLE:
CENTRAL ANGLE An angle with it’s vertex at the center that cuts an arc on the circle.
INSCRIBED ANGLE:
INSCRIBED ANGLE An angle with it’s vertex ON the center that cuts an arc on the circle. It touches the circle in 3 places.
Slide 10:
REVIEW Name the diameter. Name a radius. Name two chords. Name an arc. Is there a central angle? Is there an inscribed angle?
In summary…..:
In summary…..