0 degrees
An inscribed angle is an angle whose vertex is on the circle and whose sides are chords.
central angle
A single ray.
an acute angle
The measure of an angle whose sides overlap is 0 degrees. It is than not an angle, but rather a line.
0 APEX!!
zero
0 degrees
An angle whose measure is exactly 180 degrees is a straight angle.
hextogonImproved Answer:-A regular pentagon which has 5 sides
An inscribed angle is an angle whose vertex is on the circle and whose sides are chords.
central angle
Right Angle
An angle whose measure is two times 90 degrees is a 180 degree angle, which is also a straight angle.
Inscribed angle
Acute Angle: An angle whose measure is less than 90 degrees and greater then zero degrees is called an acute angle. Right Angle: An angle whose measure is 90 degrees is called right angle. Obtuse Angle: An angle whose measure is greater than 90 degrees and less than 180 degrees is called obtuse angle. Straight Angle: An angle whose measure is 180 degrees called a straight angle. Reflex Angle: An angle whose measure is greater than 180 degrees and less than 360 degrees is called a reflex angle. Complete Angle: An angle whose measure is 360 degrees is called a complete angle. Zero Angle: If the measure of an angle is zero it is called a zero angle.