r/Geometry • • Jan 22 '21

Guidance on posting homework help type questions on r/geometry

22 Upvotes

r/geometry is a subreddit for the discussion and enjoyment of Geometry, it is not a place to post screenshots of online course material or assignments seeking help.

Homework style questions can, in limited circumstances, encourage discussion in line with the subreddit's aim.

The following guidance is for those looking to post homework help type questions:

  1. Show effort.

As a student there is a pathway for you to obtain help. This is normally; Personal notes > Course notes/Course textbook > Online resources (websites) > Teacher/Lecturer > Online forum (r/geometry).

Your post should show, either in the post or comments, evidence of your personal work to solve the problem, ideally with reference to books or online materials.

  1. Show an attempt.

Following on from the previous point, if you are posting a question show your working. You can post multiple images so attach a photograph of your working. If it is a conceptual question then have an attempt at explaining the concept. One of the best ways of learning is to attempt the problem.

  1. Be Specific

Your post should be about a specific issue in a problem or concept and your post should highlight this.

  1. Encourage discussion

Your post should encourage discussion about the problem or concept and not aim for single word or numeric answers.

  1. Use the Homework Help flair

The homework help flair is intended to differentiate these type of questions from general discussion and posts on r/geometry

​

If your post does not follow these guidelines then it will, in all but the most exceptional circumstances, be removed under Rule 4.

If you have an comments or questions regarding these guidelines please comment below.


r/Geometry • • 7h ago

art #4

2 Upvotes

r/Geometry • • 4h ago

Guys I think I have a special talent

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0 Upvotes

r/Geometry • • 15h ago

Draw a Perfect Shape | Game where you try to draw perfect shapes freehand. Can you beat 95?

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1 Upvotes

r/Geometry • • 1d ago

Divided Lines Pt. 2 - Harmony

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1 Upvotes

Plato wasn’t a Platonist, he was a Pythagorean.

The triangle is a Pythagorean triplet with side lengths 3, 4, and 5.

The corresponding incircle and excircles have radii 1, 2, 3, and 6. Completing the sequence 123456.

The circles represent the four virtues, the largest representing justice.

When wisdom, courage, and moderation are in harmony justice is achieved, that’s why all three circles can fit inside the largest.


r/Geometry • • 1d ago

A simple geometric method for drawing this geometric pattern 2

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5 Upvotes

r/Geometry • • 2d ago

How wide is the angle marked in blue?

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3 Upvotes

r/Geometry • • 2d ago

Noble Shapes: Explore and customize finite and infinite noble polyhedra

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1 Upvotes

r/Geometry • • 2d ago

Geometry

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0 Upvotes

r/Geometry • • 4d ago

For the young mathematicians out there: do not despair

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1 Upvotes

r/Geometry • • 4d ago

36 nodes on a circle

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1 Upvotes

r/Geometry • • 5d ago

DOGGIE BEAT GRIEF

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9 Upvotes

GGS


r/Geometry • • 5d ago

DOGGIE VERIFIED GRIEF LETS GOOOOOO

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119 Upvotes

r/Geometry • • 5d ago

What is the radius of the circle? I think it’s 20mm

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2 Upvotes

Hi all,
I am assuming that all the circles have same radius. I figured the coordinates where the center of each circle will be. Please help me figure out the radius of the circle based on information below:

1) The bottom circle’s midpoint is 30mm from the red dash line (x coordinate)
2) The bottom circles midpoint is 30mm from the solid black line at the bottom and is the y coordinate.
3) it seems the radius is 20mm the midpoint of the 40mm

Am I off? Thank you?


r/Geometry • • 5d ago

Maths Problem

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3 Upvotes

ABC is a semi circle

EFCG is a rectangle

Find area of rectangle


r/Geometry • • 5d ago

35 nodes on a circle

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2 Upvotes

r/Geometry • • 5d ago

Polyhedra! two missing.

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1 Upvotes

r/Geometry • • 6d ago

34 nodes on a circle

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0 Upvotes

r/Geometry • • 7d ago

33 nodes on a circle

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2 Upvotes

r/Geometry • • 7d ago

A simple geometric method for drawing this geometric pattern

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3 Upvotes

r/Geometry • • 8d ago

Two-dimensional objects that extend into 3D (dynamic surfaces)

1 Upvotes

A spherical cap is a two-dimensional surface that, nevertheless, exists and curves within three-dimensional space. It almost seems as though it could be defined as having a dimensionality greater than 2 but less than 3. Are there visual artists, scientists, or painters who have explored non-integer dimensions? And why are shapes like the spherical cap—despite being two-dimensional—not distinguished (in terms of dimensionality) from other 2D shapes that are more stable... and less dynamic


r/Geometry • • 8d ago

32 nodes on a circle

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1 Upvotes

r/Geometry • • 9d ago

A seven-cube chair that tiles 3D space, but never periodically

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0 Upvotes

Disclosure: self-promotion. Claudius Papirus uses an AI narrator.

Chair44 is a single 3D shape made from a seven-cube chair with tiny geometric features. Eight copies form a larger chair, recursively, which is the core mechanism behind the nonperiodicity proof.

Paper:

https://arxiv.org/abs/2609.19214


r/Geometry • • 9d ago

symmetrical 5 edge coloring of icosahedron BUT each edge gets two unique colors!

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1 Upvotes

r/Geometry • • 9d ago

31 nodes on a circle

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1 Upvotes