Central Angles, Inscribed Angles and Intercepted Arcs

Inscribed angle: An angle with its vertex on the _____________ of the circle

• center

• circumference

The intercepted arc of an inscribed angle  is ___________________ the measure of the inscribed angle.

• congruent to
• half
• double
• supplementary to 

Which phrases completes this theorem correctly?

The measure of an inscribed angle equals ....

• half the measure of the intercepted arc.

• twice the measure of the intercepted arc.

• the measure of the intercepted arc.

Which phrase completes this theorem correctly?

If two inscribed angles intersect the same arc, then ...

• they are congruent

• they are similar

• they are right angles

Determine if the angle is a central angle, inscribed angle or neither.
$\angle\ ABC$

• central angle

• inscribed angle

• neither

Determine if the angle is a central angle, inscribed angle or neither.
$\angle\ ACB$

• central angle

• inscribed angle

• neither

Determine if the angle is a central angle, inscribed angle or neither.
$\angle\ FAC$

• central angle

• inscribed angle

• neither

Determine if the angle is a central angle, inscribed angle or neither.
$\angle\ BAC$

• central angle

• inscribed angle

• neither

Determine if the angle is a central angle, inscribed angle or neither.
$\angle\ DEA$

• central angle

• inscribed angle

• neither

• central angle

• inscribed angle

• neither