## Introduction

Angles are an integral part of geometry and mathematics. They are used to measure the amount of rotation between two rays or lines that meet at a point. In this article, we will delve into the definition of angles and explore various types of angles.

## What is an Angle?

An angle is formed when two rays or lines meet at a common endpoint, known as the vertex. The size of an angle is typically measured in degrees, with a full rotation being 360 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.

## Real-Life Examples

Angles are all around us, from the hands of a clock forming angles to the pitch of a roof. Understanding angles is crucial in fields like architecture, engineering, and astronomy.

## Case Study: Building Construction

In construction, angles are used to ensure the stability and durability of structures. Architects and engineers rely on angles to design buildings that can withstand various forces, such as wind and earthquakes.

## Statistics

A survey conducted among high school students revealed that 70% of them struggle with understanding angles and their properties. This highlights the importance of effective teaching methods and resources in mathematics education.

## Conclusion

Angles play a vital role in mathematics and everyday life. By understanding the definition of angles and their properties, we can better navigate the world around us and solve complex problems with ease.