List questions from euclidean-geometry

Published on 26 Mar 2026 - 6:21

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Find the function does describe the the percentage of the area that each circle overlaps

Published on 27 Mar 2026 - 22:52

26

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Finding length of some sides on a triangle construction.

Published on 09 Apr 2026 - 8:03

182

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A new(?) proof of the Law of Cosines using segments determined by the points of contact with a triangle's incircle

Published on 29 Mar 2026 - 7:00

85

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Basic Geometry Problem : FInd $AC$

Published on 26 Mar 2026 - 2:51

210

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On circumcircle, incircle, trillium theorem, power of a point and additional constructions in $\triangle ABC$

Published on 06 Jun 2020 - 9:06

506

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Can the cross section of parallelepiped be a regular pentagon

Published on 09 Apr 2026 - 2:24

127

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Triangles and medians

Published on 25 Mar 2026 - 20:33

142

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Equations of the orthogonal projection on the line $r = y - 2x + 1 = 0$

Published on 27 Mar 2026 - 0:05

41

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A minimum movement of a sphere to avoid superposition from another

Published on 08 Apr 2026 - 23:24

103

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Triangle with altitudes and projections.

Published on 11 Apr 2026 - 18:42

111

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How to solve without using trig?

Published on 09 Apr 2026 - 9:50

312

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Are left isoclinic rotations a group?

Published on 26 Mar 2026 - 3:01

61

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Triangles and inequalities

Published on 11 Apr 2026 - 19:57

319

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Finding the circumradius-to-inradius ratio for the regular pentagon

Published on 26 Mar 2026 - 22:13

List Question

Locus of a moving point, when constraints on an angle and length are given

Find the function does describe the the percentage of the area that each circle overlaps

Finding length of some sides on a triangle construction.

A new(?) proof of the Law of Cosines using segments determined by the points of contact with a triangle's incircle

Basic Geometry Problem : FInd $AC$

On circumcircle, incircle, trillium theorem, power of a point and additional constructions in $\triangle ABC$

Can the cross section of parallelepiped be a regular pentagon

Triangles and medians

Equations of the orthogonal projection on the line $r = y - 2x + 1 = 0$

A minimum movement of a sphere to avoid superposition from another

Triangle with altitudes and projections.

How to solve without using trig?

Are left isoclinic rotations a group?

Triangles and inequalities

Finding the circumradius-to-inradius ratio for the regular pentagon

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