Question

Polygons with coincident area and perimeter centroids

score 596 · Answer 1 · 2026-03-26 09:26:24

596

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Polygons with coincident area and perimeter centroids

Published on 26 Mar 2026 - 9:26

score 2.7k · Answer 2 · 2014-12-31 14:08:55

2.7k

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How many lines bisect both perimeter and area of a 3-4-5 triangle?

Published on 31 Dec 2014 - 14:08

score 135 · Answer 3 · 2015-01-01 01:31:14

135

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Why are these three lines concurrent?

Published on 01 Jan 2015 - 1:31

score 97 · Answer 4 · 2026-03-25 19:04:47

97

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What is the fundamental theorem on discrete groups of Euclidean spaces?

Published on 25 Mar 2026 - 19:04

score 75 · Answer 5 · 2019-10-02 13:23:38

75

Views

Chained inscribed circles

Published on 02 Oct 2019 - 13:23

score 117 · Answer 6 · 2026-03-09 05:52:02

117

Views

Proving a consequence on Johnson Lindenstrauss Lemma via simulation

Published on 09 Mar 2026 - 5:52

score 74 · Answer 7 · 2026-04-02 14:43:01

74

Views

Proof of minimum distance for a "bent line" using the triangle inequality

Published on 02 Apr 2026 - 14:43

score 36 · Answer 8 · 2026-03-29 18:50:32

36

Views

Rotate a surface of revolution into $\Bbb R^4$?

Published on 29 Mar 2026 - 18:50

score 90 · Answer 9 · 2026-03-26 15:17:17

90

Views

Why use the affine plane $\mathbb A^2$ (rather than $\mathbb R^2$) in writing $\mathbb{RP}^2=\mathbb A^2\sqcup\mathbb{RP}^1$?

Published on 26 Mar 2026 - 15:17

score 322 · Answer 10 · 2026-03-25 11:32:30

322

Views

Do vector spaces only describe euclidean space? (and the parallel postulate)

Published on 25 Mar 2026 - 11:32

score 83 · Answer 11 · 2026-03-29 15:14:44

83

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Why do we have three different coordinate systems (Cartesian, cylindrical, and spherical)?

Published on 29 Mar 2026 - 15:14

score 57 · Answer 12 · 2019-10-05 15:05:49

57

Views

Do any two affine rotations with no common fixed point generate an infinite group?

Published on 05 Oct 2019 - 15:05

score 164 · Answer 13 · 2026-04-01 12:12:32

164

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Euclid's Elements book III proposition #31 direct from #20?

Published on 01 Apr 2026 - 12:12

score 142 · Answer 14 · 2026-03-25 13:05:09

142

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Are enclosed 4D shapes really enclosed?

Published on 25 Mar 2026 - 13:05

score 77 · Answer 15 · 2019-10-07 11:13:36

77

Views

How can I find the norm and resultant of a pair of vectors passing through half a circle?

Published on 07 Oct 2019 - 11:13

List Question

Polygons with coincident area and perimeter centroids

How many lines bisect both perimeter and area of a 3-4-5 triangle?

Why are these three lines concurrent?

What is the fundamental theorem on discrete groups of Euclidean spaces?

Chained inscribed circles

Proving a consequence on Johnson Lindenstrauss Lemma via simulation

Proof of minimum distance for a "bent line" using the triangle inequality

Rotate a surface of revolution into $\Bbb R^4$?

Why use the affine plane $\mathbb A^2$ (rather than $\mathbb R^2$) in writing $\mathbb{RP}^2=\mathbb A^2\sqcup\mathbb{RP}^1$?

Do vector spaces only describe euclidean space? (and the parallel postulate)

Why do we have three different coordinate systems (Cartesian, cylindrical, and spherical)?

Do any two affine rotations with no common fixed point generate an infinite group?

Euclid's Elements book III proposition #31 direct from #20?

Are enclosed 4D shapes really enclosed?

How can I find the norm and resultant of a pair of vectors passing through half a circle?

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