Geometry is a branch of mathematics that focuses on the study of shapes, sizes, and relative positions of figures and shapes in space. It has been used for centuries to describe and measure the world around us. Geometry can be used to solve problems in many fields including engineering, architecture, art, and navigation. At its most basic level, geometry is the study of points, lines, and planes. Points are single locations in space, lines are paths between two points, and planes are two–dimensional surfaces that extend in all directions. From these basic elements, many complex shapes and figures can be created. Commonly studied figures in geometry include circles, triangles, squares, and rectangles. Geometry is used to describe and measure angles, lengths, and areas. The angle between two intersecting lines is measured in degrees, and the length of a line can be calculated using the Pythagorean theorem. Areas of shapes can be calculated by multiplying the length and width of a shape. Geometric shapes can also be used to solve problems in many fields. For example, architects use geometric shapes to design structures like bridges and buildings. Engineers use geometry to design sturdy structures that are strong enough to withstand forces like wind and water. Artistic works often use geometric shapes to create abstract pieces. Geometry is also used in navigation to calculate a ship‘s heading and the shortest path between two points. Geometry has been around since ancient times. The ancient Egyptians used geometry to build the pyramids, and the Greeks developed many of the basic principles of geometry. The invention of the compass in the Middle Ages allowed for the creation of more accurate drawings, and the development of calculus in the 17th century allowed for the calculation of curved shapes. The development of computer aided design in the 20th century allowed for the creation of more complex shapes. Today, geometry is still an important part of mathematics. It is used in many fields to design and solve problems. Geometry is also used to understand the physical world around us and to create and appreciate works of art. Geometry is a fascinating subject that has been used for centuries, and it will continue to be used in the future.