Question

Finding a tetrahedron with known sides of the base and the angles opposite to these sides of the side faces.

score 43 · Answer 1 · 2026-04-15 02:35:43

43

Views

Finding a tetrahedron with known sides of the base and the angles opposite to these sides of the side faces.

Published on 15 Apr 2026 - 2:35

score 148 · Answer 2 · 2026-04-14 05:26:46

148

Views

Find the $PMC$ angle in the construction below

Published on 14 Apr 2026 - 5:26

score 90 · Answer 3 · 2026-04-12 02:43:00

90

Views

A problem involving two orthocenters of two triangles inscribed the same circle

Published on 12 Apr 2026 - 2:43

score 70 · Answer 4 · 2026-04-16 13:07:31

70

Views

Terminology: What is "Euclidean Vector Space" and "Euclidean norm"?

Published on 16 Apr 2026 - 13:07

score 99 · Answer 5 · 2026-04-16 03:59:03

99

Views

Recurrence relation for the number of rectangle in a $d$-dimensional cube

Published on 16 Apr 2026 - 3:59

score 269 · Answer 6 · 2026-04-09 15:24:37

269

Views

How would you prove that the orthocentres of triangles with one moving point form a circular arc?

Published on 09 Apr 2026 - 15:24

score 50 · Answer 7 · 2026-04-16 02:21:13

50

Views

Smallest shape between a rectangle and a diamond which include an ellipse

Published on 16 Apr 2026 - 2:21

score 93 · Answer 8 · 2026-04-16 03:03:00

93

Views

Rigorous version of the Symmetry of Things

Published on 16 Apr 2026 - 3:03

score 89 · Answer 9 · 2026-04-15 20:36:59

89

Views

Considering Rectangles Whose Perimeter/Long Side Ratio is Equal to Long Side/Short Side Ratio

Published on 15 Apr 2026 - 20:36

score 41 · Answer 10 · 2026-04-15 16:51:12

41

Views

Determine a straight line that is orthogonal to both $(AF)$ and $(AH)$.

Published on 15 Apr 2026 - 16:51

score 152 · Answer 11 · 2026-04-12 19:13:54

152

Views

Evaluating the ratio of minimum to maximum norm

Published on 12 Apr 2026 - 19:13

score 152 · Answer 12 · 2026-03-26 01:28:59

152

Views

Is there still active research in Euclidean geometry?

Published on 26 Mar 2026 - 1:28

score 52 · Answer 13 · 2026-04-13 17:47:55

52

Views

Why is proving converses of propositions (specifically in Euclid) important?

Published on 13 Apr 2026 - 17:47

score 128 · Answer 14 · 2026-04-13 17:13:36

128

Views

The Golden ellipse

Published on 13 Apr 2026 - 17:13

score 96 · Answer 15 · 2026-04-13 02:33:43

96

Views

For $\triangle ABC$ with incenter $I$, and with $D$ the foot of the perpendicular from $A$ to $BC$, compute $\angle BID$

Published on 13 Apr 2026 - 2:33

List Question

Finding a tetrahedron with known sides of the base and the angles opposite to these sides of the side faces.

Find the $PMC$ angle in the construction below

A problem involving two orthocenters of two triangles inscribed the same circle

Terminology: What is "Euclidean Vector Space" and "Euclidean norm"?

Recurrence relation for the number of rectangle in a $d$-dimensional cube

How would you prove that the orthocentres of triangles with one moving point form a circular arc?

Smallest shape between a rectangle and a diamond which include an ellipse

Rigorous version of the Symmetry of Things

Considering Rectangles Whose Perimeter/Long Side Ratio is Equal to Long Side/Short Side Ratio

Determine a straight line that is orthogonal to both $(AF)$ and $(AH)$.

Evaluating the ratio of minimum to maximum norm

Is there still active research in Euclidean geometry?

Why is proving converses of propositions (specifically in Euclid) important?

The Golden ellipse

For $\triangle ABC$ with incenter $I$, and with $D$ the foot of the perpendicular from $A$ to $BC$, compute $\angle BID$

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