Name: _________________________ Per: ________ Date: ___________
Circle Basics
Main Ideas
Circle, Center,
Radius
A circle is a set of points on. a plane that
are ________ from a fixed point called
the __________.
The distance of each point from the
center is called the ________
A circle is named by its _____________
Chord, Diameter A line segment joining any two points on
a circle is called a _____________.
A ______________ is a chord that
contains the center of the circle
The length of the diameter is _________
the radius
Central Angle,
Inscribed Angle
An angle whose___________ is the
center of the circle and whose sides are
___________ is called a central angle.
A angle whose vertex is a point on the
circle and whose sides are
_____________ is called an inscribed
angle.
Arc Any two points on the circle determine an
_____________. The two points are
called the endpoints of an arc.
Semicircle, Minor
Arc, Major Arc
An arc determined by the endpoints of a
diameter is called a _______________
An arc that is less than a semicircle is
called a ___________ arc.
An arc that is greater than a semicircle is
called a _____________ arc.
