An angle greater than 180° and less than a complete angle is called ______.
Reflex angle
Step 1: Recall basic angles
(180^circ) is a straight angle.
(360^circ) is a complete angle.
Step 2: Check the size of the given angle
Let the angle be (\theta).
(\theta > 180^circ)
(\theta < 360^circ)
Step 3: Name of such an angle
An angle whose measure is more than (180^circ) and less than (360^circ) is called a reflex angle.
Example
(270^circ) is a reflex angle because (180^circ < 270^circ < 360^circ).