Circle Vocab
Central Angles
Inscribed Angles
Interior Angles
Exterior Angles
100

The portion of a circle in between two parts

Arc

100

What is the measure of arc AD? 


38

100

An angle whose vertex lies on a circle

inscribed angle

100

The measure of the angle formed is equal to 1/2 the sum of the intercepted arcs

Interior angles

100

Find the missing angle.

39°

200

Line or line segment that begins outside the circle, posses through one side of the circle and ends at the other side of the circle

Secant

200

Set of all points in the plane equidistant from a single point called the center

circle

200

if 2 inscribed angles intercept the same arc, then the angles are congruent

corollaries

200

Find the measure of each angle indicated.


31°

200

Which of the following terms best describes Angle d?

exterior angle

300

A straight line segment whose endpoints lie on the edge of the circle

Chord

300

 which is minor arc?


AB

300

Find m∠PRQ. 


51°

300

What do the angles in an equilateral triangle measure?

60, 60, 60

300

Find the measure of the indicated angle

45

400

The arc that is found between the two endpoints of an angle of the circle

Intercepted Arc

400

Which best describes line AB?


Secant

400


44

400

Solve for x.

-8

400

What is the measure of angle b?

36

500

The distance between the two points on the arc

Arc Length 

500

Circles with exactly the same radius measures

congruent circle

500


70

500

Find the measure of each angle indicated. 


25°

500

Which of the following angles can you add together to equal angle d?

Angle a and Angle b