An obtuse angle is defined as any angle that measures more than 90 degrees but less than 180 degrees. Visually, you can identify an obtuse angle by its broad appearance; it looks more open and ‘sprawled out’ compared to acute angles, which are sharp and narrow, and right angles, which form a perfect corner at 90 degrees.
To help you visualize this, think of an obtuse angle as one that can represent the hands of a clock at 10:10. In this position, the angle formed between the hour hand and the minute hand is obtuse. Similarly, if you were to hold your arms out to the side at an angle greater than 90 degrees, the angle between your arms would also be obtuse.
In diagrams or illustrations, an obtuse angle is often marked clearly, and you might see it labeled with a small arc to signify the angle measurement. This arc will typically sit inside the angle and help distinguish it from acute and right angles. Overall, the most crucial aspect of an obtuse angle is its measurement; if it exceeds 90 degrees but is less than 180 degrees, it qualifies as obtuse.