Saxon Math 8/7 Investigation 2
Semicircle
A half circle
Inscribed Polygon
A polygon whose vertices are on a circle and whose other points are inside the circle
Sector
A region bounded by an arc of a circle and two radii
Chord
A segment that passes through the interior of a circle and has both endpoints on the circle
Inscribed Angle
An angle that opens to the interior of the circle from a vertex on the circle
Central Angle
An angle whose vertex is the center of a circle
Arc
Part of the circumference of a circle
Diameter
The distance across a circle through its center
Circumference
The distance around a circle
Radius
The distance between the pivot point and the marking point of a compass when drawing a circle
Radius
The distance from the center of a circle to every point on the circle
Center
The point that is the same distance from any point on a circle
Concentric Circles
Two or more circles with the same center
