Question

Calculate the segment EC in the rectangle ABCD

score 121 · Answer 1 · 2026-04-16 12:16:09

121

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Calculate the segment EC in the rectangle ABCD

Published on 16 Apr 2026 - 12:16

score 44 · Answer 2 · 2026-04-14 03:18:04

44

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Published on 14 Apr 2026 - 3:18

score 94 · Answer 3 · 2026-04-11 13:07:00

94

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Triangle area problem involving the centroid

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score 35 · Answer 4 · 2026-04-10 08:46:06

35

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Applying Hilbert's geometric Axiom of Completeness to deduce equivalent forms

Published on 10 Apr 2026 - 8:46

score 87 · Answer 5 · 2026-04-13 23:05:00

87

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$I$ is the incenter of $ABC$. The extension of $AI$ meets the circumcircle of $ABC$ at $D$. If $AB=3$, $AC=4$, and $[IBC]=[DBC]$, find $BC$.

Published on 13 Apr 2026 - 23:05

score 55 · Answer 6 · 2026-04-16 03:18:35

55

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On Ratios in Isosceles Triangles

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score 693 · Answer 7 · 2026-04-15 09:34:12

693

Views

Given a circle, construct three circles tangent to it and tangent to each other

Published on 15 Apr 2026 - 9:34

score 78 · Answer 8 · 2026-04-13 02:03:52

78

Views

Are the acute angle of a 3-4-5 right triangle transcendental

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score 282 · Answer 9 · 2026-04-29 17:18:43

282

Views

What is the Lebesgue measure of zero-dimensional space?

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score 37 · Answer 10 · 2026-04-11 04:59:00

37

Views

Volume of an n-dimensional isosceles pyramid

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score 48 · Answer 11 · 2026-04-11 08:42:39

48

Views

Are two parallel projections sufficient to prove that four points are the vertices of a parallelogram?

Published on 11 Apr 2026 - 8:42

score 45 · Answer 12 · 2026-04-11 17:09:19

45

Views

How can I find the closest points that form a perpendicular?

Published on 11 Apr 2026 - 17:09

score 70 · Answer 13 · 2026-04-16 23:14:55

70

Views

Problem to prove a point lies on a circle.

Published on 16 Apr 2026 - 23:14

score 172 · Answer 14 · 2026-02-23 02:42:06

172

Views

$M$ in triangle $ABC$ ; images $A',B',C'$ by inversions wrt circles $(MBC),(AMC),(ABM)$ are such that $A'B'C'$ equilateral : is $M$ a known center?

Published on 23 Feb 2026 - 2:42

score 48 · Answer 15 · 2026-04-14 22:56:24

48

Views

The intersection of $ n $ cylinders in $ 3$-dimensional space

Published on 14 Apr 2026 - 22:56

List Question

Calculate the segment EC in the rectangle ABCD

Shortest distance between a line and point - does my method work?

Triangle area problem involving the centroid

Applying Hilbert's geometric Axiom of Completeness to deduce equivalent forms

$I$ is the incenter of $ABC$. The extension of $AI$ meets the circumcircle of $ABC$ at $D$. If $AB=3$, $AC=4$, and $[IBC]=[DBC]$, find $BC$.

On Ratios in Isosceles Triangles

Given a circle, construct three circles tangent to it and tangent to each other

Are the acute angle of a 3-4-5 right triangle transcendental

What is the Lebesgue measure of zero-dimensional space?

Volume of an n-dimensional isosceles pyramid

Are two parallel projections sufficient to prove that four points are the vertices of a parallelogram?

How can I find the closest points that form a perpendicular?

Problem to prove a point lies on a circle.

$M$ in triangle $ABC$ ; images $A',B',C'$ by inversions wrt circles $(MBC),(AMC),(ABM)$ are such that $A'B'C'$ equilateral : is $M$ a known center?

The intersection of $ n $ cylinders in $ 3$-dimensional space

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