Angles
An angle is a figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles are measured in degrees.

Types of Angles
- Acute Angle: An angle that measures less than 90 degrees.
- Right Angle: An angle that measures exactly 90 degrees.
- Obtuse Angle: An angle that measures more than 90 degrees but less than 180 degrees.
- Straight Angle: An angle that measures exactly 180 degrees.
- Reflex Angle: An angle that measures more than 180 degrees but less than 360 degrees.
- Full Angle: An angle that measures exactly 360 degrees.
Angles play a crucial role in geometry and are used to measure the amount of rotation or turn in different shapes and figures. Understanding the types of angles helps in solving problems related to geometry, such as measuring angles in triangles, quadrilaterals, and other polygons. Additionally, angles are used in various fields such as engineering, architecture, and physics.
In conclusion, angles are an essential concept in mathematics and have practical applications in various real-world scenarios. Familiarizing yourself with the different types of angles can help you better understand geometric properties and relationships between different shapes.