Geometry is, along with arithmetic, one of the oldest branches of mathematics. A mathematician who works in the field of geometry is called a geometer.

Learn geometry—angles, shapes, transformations, proofs, and more.

Geometry, the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space.

Two types of geometry are plane geometry and solid geometry. Plane geometry deals with two-dimensional shapes and planes (x-axis and y-axis), while solid geometry deals with three …

Geometry is all about shapes and their properties. If you like playing with objects, or like drawing, then geometry is for you!

Essential stuff for describing the world around you. 1. Lines and angles. 2. Related angles. What about angles bigger than 360 degrees? 3. Triangles. See if it's really true, and then prove it! They have two …

Geometry is a branch of mathematics that includes the study of shape, size, and other properties of figures. It is one of the oldest branches of mathematics and may have been used even in prehistoric …

Aug 21, 2025 · Geometry is more than shapes and formulas — it is the language of space and structure that helps us make sense of the world. It matters in daily life, from designing buildings to navigating …

This video explains and demonstrates the fundamental concepts (undefined terms) of geometry: points, lines, ray, collinear, planes, and coplanar. The basic ideas in geometry and how we represent them …

Geometry is the branch of mathematics that explores the properties, measurements, and relationships between shapes in space. Geometry involves the construction of points, lines, polygons, and three …