Vocab
A unit used to measure the size of an angle
Degrees
Dot with a circle around it, then an uppercase letter denoting the name of the shape
notation of a circle
Figure formed by a set of points that are at a fixed distance
circle
Twice the length of the radius
Diameter
The measure of a full arc of a circle
360 degrees
A line that passes through the center of the circle
Diameter
Dot with an uppercase letter
notation of a point
Obtained when a circle is divided into two equal parts
semicircle
A circle has the ____ of all shapes with the same area
shortest perimeter
The measure of the arc of a semi circle
180 degrees
The distance around the circle
Circumference
Two uppercase letters with a straight line above them
notation of a segment
A portion of the circumference
arc
Circles have a high level of
symmetry
The measure of a quarter of a circle
90 degrees
A line segment that has one endpoint at the center and the other on the circle.
Radius
Two uppercase letters with a line with arrows on the end above it
notation for a line
Formed by joining the endpoints of an arc with the center
sector
A circle has none of these
corners
An angle with its vertex at the center of the circle
central angle
A line segment whose end points are on the circle
Chord
Can be measured because they are finite, having both a beginning and an end
line segment
This is the number of dimensions that a circle has
2
A circle is a shape made up of a collection of points all the same distance from
a center origin
An angle with its vertex on the circle
Inscribed angle