Question

A curious connection between the orthocenter of a pentagon and linear algebra

score 61 · Answer 1 · 2024-01-22 10:29:50

61

Views

A curious connection between the orthocenter of a pentagon and linear algebra

Published on 22 Jan 2024 - 10:29

score 401 · Answer 2 · 2024-01-31 08:11:02

401

Views

If all of the angles of a polygon are equal, and half of its sides are equal, then must the polygon be regular?

Published on 31 Jan 2024 - 8:11

score 127 · Answer 3 · 2024-01-31 09:54:28

127

Views

How many sides of an odd-sided equiangular polygon must be proven equal to conclude that it is regular?

Published on 31 Jan 2024 - 9:54

score 44 · Answer 4 · 2024-02-02 23:28:32

44

Views

Geometry needed to layout points in a grid for a centered hexagonal number?

Published on 02 Feb 2024 - 23:28

score 35 · Answer 5 · 2024-02-07 12:12:58

35

Views

True or false: In a 2D Poisson process, for every point $P$, there exists a convex $1000$-gon with Poisson points as vertices, that contains only $P$.

Published on 07 Feb 2024 - 12:12

score 67 · Answer 6 · 2024-02-07 21:46:19

67

Views

Sum of diagonals of pentagon inscribed in circle

Published on 07 Feb 2024 - 21:46

score 76 · Answer 7 · 2024-02-16 19:03:57

76

Views

Circumscribed (irregular) pentagon

Published on 16 Feb 2024 - 19:03

score 49 · Answer 8 · 2024-03-04 06:11:19

49

Views

Finding the Areas of Polygons from Side Lengths

Published on 04 Mar 2024 - 6:11

score 57 · Answer 9 · 2026-02-23 13:46:00

57

Views

Finding length of sides of a five-sided region within a rectangle when centroid is known

Published on 23 Feb 2026 - 13:46

score 28 · Answer 10 · 2026-02-23 13:47:42

28

Views

On the shoelace formulas

Published on 23 Feb 2026 - 13:47

score 41 · Answer 11 · 2024-03-27 12:02:13

41

Views

Approximation of $\pi$ step by step by using $\sin\frac{60}{2^x}(3(2^x))=\pi$

Published on 27 Mar 2024 - 12:02

score 449 · Answer 12 · 2026-03-27 07:14:23

449

Views

What's the difference between zig-zags and a helixes?

Published on 27 Mar 2026 - 7:14

score 52 · Answer 13 · 2024-03-27 23:32:21

52

Views

Polygon Problem

Published on 27 Mar 2024 - 23:32

score 4.3k · Answer 14 · 2026-02-23 01:22:38

4.3k

Views

Scaling and rotating a square so that it is inscribed in the original square

Published on 23 Feb 2026 - 1:22

score 788 · Answer 15 · 2026-03-26 06:03:39

788

Views

Interior angles of a polygon.

Published on 26 Mar 2026 - 6:03

List Question

A curious connection between the orthocenter of a pentagon and linear algebra

If all of the angles of a polygon are equal, and half of its sides are equal, then must the polygon be regular?

How many sides of an odd-sided equiangular polygon must be proven equal to conclude that it is regular?

Geometry needed to layout points in a grid for a centered hexagonal number?

True or false: In a 2D Poisson process, for every point $P$, there exists a convex $1000$-gon with Poisson points as vertices, that contains only $P$.

Sum of diagonals of pentagon inscribed in circle

Circumscribed (irregular) pentagon

Finding the Areas of Polygons from Side Lengths

Finding length of sides of a five-sided region within a rectangle when centroid is known

On the shoelace formulas

Approximation of $\pi$ step by step by using $\sin\frac{60}{2^x}(3(2^x))=\pi$

What's the difference between zig-zags and a helixes?

Polygon Problem

Scaling and rotating a square so that it is inscribed in the original square

Interior angles of a polygon.

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