Two-dimensional (2D) shapes are completely flat. They have two dimensions – length and width. A polygon is a closed 2D shape with straight sides that meet at vertices. Polygons can be regular or ...
LOUISVILLE, Ky. (WDRB) -- A southern Indiana math coach is using the Internet and her bathtub to sharpen students' math skills while they're stuck at home during the COVID-19 pandemic. Megan Bliss, a ...
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