Angles

An angle is formed when two rays share a common endpoint, called the vertex. The amount of rotation from one ray to the other determines the size of the angle. Angles are measured in degrees, and there are several 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, forming a straight line.
• Reflex Angle: An angle that measures more than 180 degrees but less than 360 degrees.

Angles can be classified based on their relationship to each other:

• Adjacent Angles: Two angles that share a common vertex and a common side, but do not overlap.
• Complementary Angles: Two angles whose measures add up to 90 degrees.
• Supplementary Angles: Two angles whose measures add up to 180 degrees.

Understanding angles is important for various mathematical and real-world applications, such as geometry, trigonometry, and navigation.

Remember, the total measure of angles around a point is 360 degrees, and in a straight line is 180 degrees.