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, the branch of mathematics concerned with the shape of individual objects, spatial relationships among various objects, and the properties of surrounding space.
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Geometry is all about shapes and their properties. If you like playing with objects, or like drawing, then geometry is for you!
Interactive, free online geometry tool from GeoGebra: create triangles, circles, angles, transformations and much more!
Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more (aligned with Common Core standards).
This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for the first time, consider using the grade-level courses for more in-depth instruction.
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As far as I know it's ungrammatical to use the verb form "seeing" when perception is involved - do you mean specifically the gerund seeing, or any use of to see? Either way, it sounds wrong to this US English speaker: we use "seeing" to mean "perceiving" all the time.
grammar - When is it ok to use "seeing"? - English Language Learners ...
It felt really nice seeing all the things fall together into place. Vs It felt really nice to see all the things fall together into place. Is this just an infinite- gerund thing? Or are the mean...