- Geometry (all content) - Khan Academy
Learn geometry—angles, shapes, transformations, proofs, and more
- Geometry - Wikipedia
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
- Geometry lessons - School Yourself
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 equal sides, but what about their angles? In triangles, sides and their opposite angles are related! 4 Triangle congruence and similarity
- Geometry - GeoGebra
Interactive, free online geometry tool from GeoGebra: create triangles, circles, angles, transformations and much more!
- Geometry | Definition, History, Basics, Branches, Facts | Britannica
Geometry, the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space
- Geometry - Math is Fun
Geometry is all about shapes and their properties If you like playing with objects, or like drawing, then geometry is for you!
- Geometry - Formulas, Examples | Plane and Solid Geometry - Cuemath
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-dimensional objects and 3D planes
- Geometry - Math. net
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 times
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