
geometry - "Cuboid" not the correct name for 3d rectangle ...
Dec 15, 2019 · I have always thought the best name of the 3d equivalent of a rectangle was "cuboid". I am talking about the 3d shape with 6 rectangular faces shown below. However, …
What is the proper geometrical name for a a rectangle with a semi ...
Dec 18, 2018 · I'm talking about the shape made up of a rectangle with a semi-circle at each end. Does it have a particular name? Does it begin with e?
What's the name for a 3d U shape? - Mathematics Stack Exchange
May 15, 2019 · Extruding a shape into 3d with a rectangle makes it a prism so the full shape would be "annula-prism" and a half version of the shape would be a "semi-annula-prism". If the …
What are 3D objects called? - Mathematics Stack Exchange
Jan 7, 2016 · 4 Certain 3D objects ---cubes, spheres, cones--- are sometimes referred to as "solids", so that the study of them is "solid geometry" to distinguish from "plane geometry".
Coordinates of the centroid in a 3D rectangle
Nov 27, 2018 · If it really is a rectangle, you can just add up all of the vertex coordinates and divide by four or find the intersection of the diagonals, as one might in two dimensions.
geometry - What is the name of the shape formed by a semicircle ...
Here's the first one: It's basically a rectangle with a semicircle on top of it. Don't know if it would have a different name if it was a square instead of a rectangle, but it really doesn't matter. …
Is there a name for the series: line, rectangle, cuboid etc.?
Mar 30, 2018 · Is there a name for the series: line, rectangle, cuboid etc.? I need a general name for the series of these geometric shapes for my proof of a generalization of a problem I'm …
Is there a name for a 3D shape that looks like a circle when viewed ...
Sep 30, 2016 · Is there a name for a 3D shape that looks like a circle when viewed from one axis, a square from another, and a triangle from the third? Ask Question Asked 9 years, 2 months …
Name for "3-dimensional figure-8" shape - Mathematics Stack …
Apr 22, 2015 · Lemniscate is technically 2D and you may want a 3D shape, but you can obtain that by naming "3D lemniscate" the surface obtained by a revolution of the lemniscate around …
geometry - What is this semicircle-like shape called?
Aug 6, 2014 · I know that the shape without the straight part at the bottom between the two quarter circles is called a semicircle. Also this shape vaguely resembles the shape of a …