Circle Vocabulary
Circle Properties
Circle Properties 2
Solve
Misc
100

A straight line that goes from the center of the circle to edge of the circle.

radius

100

A tangent and a radius of a circle make this type of angle at the point of tangency.

right angle (90 degree angle)

100

The radius does this to a chord when they are perpendicular.

bisect

100

Find the area of the circle

216.4 m squared

100

What does measure mean in a circle

degrees

200

A straight line that goes from one side of the circle to the other side of the circle through the center.

Diameter

200

If the length from AC is 15 cm. What is the length of line segment BC?

15 cm

200

These types of angles are equal when they share by the same arc.

Inscribed Angles

200

15.22 cm

200

What does length mean in a circle

unit of measure (ex: inches, feet, cm, yards, etc)

300

A segment whose endpoints lie on a circle.

chord

300

What is the measurement of angle x?

20 degrees

300

What is the length of line segment x? 

9

300

A merry-go-round has a diameter of 36 feet. If a passenger gets on a horse at the edge of the wheel and travels 38 feet, find the angle of rotation to the nearest degree.

121 degrees

300

How is the measure of an inscribed angle related to the arc.

It is 1/2 the measure of the arc

400

A line that only touches the circle at one point.

Tangent

400

What is the measurement of the radius of the circle?

13.3

400

An inscribed angle, connected to the end points of a circle's diameter, has this angle measurement.

90 degrees

400

Solve for x.

19

400

Find the value of x. Assume that segments that appear to be tangent are tangent.

8.4

500

An angle with endpoints located on a circle's circumference and vertex located at the circle's center

central angle

500

What is the measurement of angle B? 

38 degrees

500

If you were to draw two different chords and bisect them, the two bisectors would intersect at this point.

center (origin) of the circle

500

11

500

What is the length of ED

51