Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...

Be careful to measure accurately when you are drawing a 2D shape. Draw a 2D shape that has 4 equal sides that are each 3 cm long and has 4 right angles. What is this shape called? It is a square.

Shapes and colors printables have been a key part of our early learning routine for years. As a homeschool mom, I’ve found that hands-on activities like these make it easier for kids to learn shape ...

A new proof solves the “Kakeya conjecture” in three dimensions, opening up a new set of possibilities for mathematics, from computer science to cryptography ...

Feb. 3, 2025 — Maternal vitamin D levels in the first trimester were related to both prenatal growth and pregnancy outcomes, according to a new study. Low vitamin D levels during the first ...