Geometry
Geometry is the branch of mathematics that deals with shapes, sizes, angles and the placement of figures in space.
It is one of the oldest mathematical disciplines and has been used for thousands of years to measure land, construct buildings and understand the world around us.
Geometry involves both two-dimensional figures such as triangles and circles and three-dimensional figures such as pyramids and spheres.
It is used in everything from school mathematics to advanced technology and science.
What do we study in geometry?
In geometry, we examine things like:
- Figures and shapes
- Angles, lines and points
- Quantities such as length, area and volume
- Relationships between sides and angles
- Symmetry, reflection and rotation
- Coordinate systems and placement in plane and space
Geometry is both practical and theoretical. It helps us understand and describe the physical world and is also used to solve concrete tasks and problems.
Main areas of geometry
Geometry is often divided into three main areas:
- Plane geometry, deals with flat figures in two dimensions
- Solid geometry, deals with figures in three dimensions
- Trigonometry, deals with the relationship between angles and sides in triangles
These areas are closely related and build upon each other. You can read more in the related articles.
Where is geometry used?
Geometry is used in many contexts, for example:
- Construction and architecture
- Drawing and design
- Navigation and GPS
- Physics and natural sciences
- Game development and 3D modelling
It is also an important part of mathematics education in schools and provides a basic understanding of mathematical relationships.