An obtuse angle is a type of angle that measures more than 90 degrees but less than 180 degrees. It is formed by the intersection of two rays or line segments that meet at a common endpoint, called the vertex of the angle. Some key facts about obtuse angles include:

• An obtuse angle is always larger than a right angle, which measures exactly 90 degrees.
• The smaller angle formed by an obtuse angle is called the acute angle, which measures less than 90 degrees.
• The larger angle formed by an obtuse angle is called the reflex angle, which measures more than 180 degrees but less than 360 degrees.

Obtuse angles can be found in many real-life situations, such as the angle between the hands of a clock at 2:30 or the angle between the roof and the wall of a house. To draw an obtuse angle, you can use a protractor to measure the angle and then draw the two rays or line segments that form the angle.

In summary, an obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees, formed by the intersection of two rays or line segments that meet at a common endpoint.