Question

Quadrilaterals and parallel lines: An olympiad question

score 282 · Answer 1 · 2026-03-22 15:45:17

282

Views

Quadrilaterals and parallel lines: An olympiad question

Published on 22 Mar 2026 - 15:45

score 2.6k · Answer 2 · 2026-03-25 03:02:22

2.6k

Views

Spheres cause contradictions in dimensions $10$ and more?

Published on 25 Mar 2026 - 3:02

score 266 · Answer 3 · 2026-03-27 16:55:13

266

Views

A geometrical analogy between $1/x$ and $\sqrt{x}$

Published on 27 Mar 2026 - 16:55

score 286 · Answer 4 · 2026-03-25 13:51:38

286

Views

An algorithm to check if two polygons have the same area

Published on 25 Mar 2026 - 13:51

score 316 · Answer 5 · 2026-03-25 01:20:23

316

Views

Stuck on a proof about a tetrahedron's medians intersecting each other in the ratio 1:3

Published on 25 Mar 2026 - 1:20

score 386 · Answer 6 · 2026-03-22 21:42:45

386

Views

How do you determine the distance from a projected point and its point of projection on a sphere having a unit radius

Published on 22 Mar 2026 - 21:42

score 167 · Answer 7 · 2026-03-29 16:38:57

167

Views

Min weight matching in Euclidean 2d space

Published on 29 Mar 2026 - 16:38

score 331 · Answer 8 · 2018-09-27 08:47:43

331

Views

Intersection of a circle and a line with only compasses

Published on 27 Sep 2018 - 8:47

score 728 · Answer 9 · 2018-09-27 13:36:56

728

Views

How can we construct rectangle with non-zero area when all its lines have zero area?

Published on 27 Sep 2018 - 13:36

score 227 · Answer 10 · 2018-09-28 03:53:08

227

Views

A special case of the Fermat-Torricelli point in a triangle

Published on 28 Sep 2018 - 3:53

score 786 · Answer 11 · 2018-09-28 09:47:11

786

Views

Understanding proof of Ptolemy's theorem - how does it connect to a circle?

Published on 28 Sep 2018 - 9:47

score 98 · Answer 12 · 2018-09-29 12:56:58

98

Views

For which $P$ do $Q,R\in g$ exist, so that $k$ is the incircle of $\Delta PQR$?

Published on 29 Sep 2018 - 12:56

score 81 · Answer 13 · 2026-03-24 23:48:10

81

Views

Zariski Tangent space to the circle $x^2 + y^2 = 5$ at the point $(2,1)$

Published on 24 Mar 2026 - 23:48

score 83 · Answer 14 · 2018-09-30 02:45:57

83

Views

An angle in a regular hexagon

Published on 30 Sep 2018 - 2:45

score 41 · Answer 15 · 2026-03-25 18:24:33

41

Views

Does anyone have information on using right circular cones to solve problems about circles in the plane?

Published on 25 Mar 2026 - 18:24

List Question

Quadrilaterals and parallel lines: An olympiad question

Spheres cause contradictions in dimensions $10$ and more?

A geometrical analogy between $1/x$ and $\sqrt{x}$

An algorithm to check if two polygons have the same area

Stuck on a proof about a tetrahedron's medians intersecting each other in the ratio 1:3

How do you determine the distance from a projected point and its point of projection on a sphere having a unit radius

Min weight matching in Euclidean 2d space

Intersection of a circle and a line with only compasses

How can we construct rectangle with non-zero area when all its lines have zero area?

A special case of the Fermat-Torricelli point in a triangle

Understanding proof of Ptolemy's theorem - how does it connect to a circle?

For which $P$ do $Q,R\in g$ exist, so that $k$ is the incircle of $\Delta PQR$?

Zariski Tangent space to the circle $x^2 + y^2 = 5$ at the point $(2,1)$

An angle in a regular hexagon

Does anyone have information on using right circular cones to solve problems about circles in the plane?

Trending Questions

Popular # Hahtags

Popular Questions