Definition:Reflex Angle

Definition

A reflex angle is an angle which has a measure between that of a straight angle and that of a full angle.

Measurement of Reflex Angle

A reflex angle measures $\theta$, where:

$180 \degrees < \theta < 360 \degrees$

or:

$\pi < \theta < 2 \pi$

Also see

• Results about reflex angles can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): angle
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): reflex angle
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): angle
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): reflex angle
• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): reflex angle