Geometry by Samuel Selzer

2-D Shapes

sjselzer — 2015-04-28 12:49:38 UTC

2-D shapes are measured by length and width.A example of a 2-D shape is a square.

sjselzer — 2015-04-28 12:59:35 UTC

D stands for dimension. 2-D shapes have 2 dimensions.That is why they are called 2-D.

sjselzer — 2015-04-29 12:14:07 UTC

3-D shapes are measured by length, depth, and width.A example of a 3-D shape is a sphere.

sjselzer — 2015-04-29 12:30:48 UTC

3-D shapes have 3 dimensions.

sjselzer — 2015-04-29 12:35:47 UTC

A prism is a 3-D shape.It looks like a stretched out shape.

sjselzer — 2015-04-29 12:44:14 UTC

Prisms have to have rectangles.At least 3 rectangles.

sjselzer — 2015-04-29 13:10:38 UTC

A pyramid is a 3-D shape.

sjselzer — 2015-05-06 12:10:09 UTC

A pyramids have one square face and four triangle faces.A pyramid could also have all triangle faces.