/r/GeometryIsNeat
r/geometryisneat - A place where you can post neat pictures of geometry. It can be anything geometric or aesthetically pleasing!
A place to post images containing some kind of geometric patten, or just nice shapes
r/AnimalsThatLoveMagic
If you have any questions or suggestions be sure to message the moderators
Have fun and post away!
/r/GeometryIsNeat
I do stained glass as a hobby. I have a 3inch equilateral triangle piece that I want inside of a circle. I want the circle to touch the triangle points. I am trying to make the AA symbol. Iβve consulted Google and YouTube and my brain canβt make it work. Can anyone help me? Please and thank you! I would like to know how big the circle should be.
Photo credit: unknown
Iβm sorry to bother this sub, but Iβve run into a dilemma. Iβm currently building a paver patio that is double the size of the pattern I was supplied with. If I place the same pattern on the side or above it, the pattern will not continue. Iβve fought with chat GPT for an hour, and my eyes are beginning to cross. If someone could please give me a hand it would be greatly appreciated. Thanks
Can anyone help me solve this? This is the only math subreddit I could find to post this image. I need to solve for X and these are all the absolute measurements I can get or equate with my current math ability. This is for a house repair for my attic access panel.
I build this icosidodecahedron with modular origami (60 pieces). It has 30 triangular faces and 12 penatgonal faces, 30 identical vertices and 60 identical edges. It is one of the 13 archimedean solids. The icosidodecahedron has a point group of -5-3m (I_h). If you take the orientation of the "flaps" of the model into account it now has a point group of 532 (I).
This model is by no means perfect. This is my first attempt at modular origami and I had to use lots of tape, to hold it together whilst building. Because of the thickness of the paper it has the tendency to disassemble itself. For the next model I am going to use either thinner paper or make the edges longer. But I have to decide first, which polyhedron I want to construct next. Maybe you have suggestions?
One can construct the so called "hexagonal origami unit" with the directions stated in: "Building polyhedra and a lot of other related structures unsig double-sided concave hexagonal origami units" by Francesco De Comite (University of Sciences of Lille). (Easily found on the internet)
this is a bad photo and iβm sorry but thereβs no way i can find another one.. pretty sure itβs shaped like a double sided skinny 6 point star if anyone has trouble visually understanding the picture
It's essentially a three sided pyramid with a curved out base. I've done some searching, but I always arrive at pyramids that have concave or convex vertical faces (like the Bent Pyramid).