Question

Can circumscribing a circle around a polygon prove that the sum of the interior angles of an n-sided polygon is $180(n - 2)$?

score 867 · Answer 1 · 2026-04-16 04:40:05

867

Views

Can circumscribing a circle around a polygon prove that the sum of the interior angles of an n-sided polygon is $180(n - 2)$?

Published on 16 Apr 2026 - 4:40

score 49 · Answer 2 · 2026-03-29 05:43:00

49

Views

Is a shape 'polarizable'?

Published on 29 Mar 2026 - 5:43

score 417 · Answer 3 · 2026-04-13 23:34:41

417

Views

What is the size of the angle $\angle AMC$?

Published on 13 Apr 2026 - 23:34

score 60 · Answer 4 · 2026-04-12 02:40:30

60

Views

Does the collection of algebraic/number-theoretic methods applied to Euclidean Geometry have a name?

Published on 12 Apr 2026 - 2:40

score 58 · Answer 5 · 2026-04-30 09:15:18

58

Views

Derive a relation between angles A,B and C

Published on 30 Apr 2026 - 9:15

score 1.3k · Answer 6 · 2026-04-15 10:32:19

1.3k

Views

Homeomorphism from $S^1\setminus(0,1)$ to $\mathbb{R}$

Published on 15 Apr 2026 - 10:32

score 198 · Answer 7 · 2026-04-11 15:49:44

198

Views

Geometry, triangle incenter problem

Published on 11 Apr 2026 - 15:49

score 298 · Answer 8 · 2026-04-25 03:19:06

298

Views

Existence of non obtuse angle of n+2 vectors in n-dimensional euclidean space.

Published on 25 Apr 2026 - 3:19

score 114 · Answer 9 · 2026-04-11 06:43:42

114

Views

Geometry-Triangle

Published on 11 Apr 2026 - 6:43

score 230 · Answer 10 · 2026-04-30 10:21:25

230

Views

Prove triangle similiarity by given expression

Published on 30 Apr 2026 - 10:21

score 60 · Answer 11 · 2026-04-13 17:12:08

60

Views

Analytical Geometry medial triangle

Published on 13 Apr 2026 - 17:12

score 90 · Answer 12 · 2026-04-30 10:21:59

90

Views

Prove concurrency in a triangle

Published on 30 Apr 2026 - 10:21

score 57 · Answer 13 · 2026-04-15 20:54:16

57

Views

Draw a line between an observer and the current direction of the sun

Published on 15 Apr 2026 - 20:54

score 46 · Answer 14 · 2026-04-13 20:31:17

46

Views

Cutting a pie into n equal area pieces with the minimum distance of cuts.

Published on 13 Apr 2026 - 20:31

score 62 · Answer 15 · 2026-04-11 00:05:45

62

Views

Proof - Elementar Geometry (parallelogram)

Published on 11 Apr 2026 - 0:05

List Question

Can circumscribing a circle around a polygon prove that the sum of the interior angles of an n-sided polygon is $180(n - 2)$?

Is a shape 'polarizable'?

What is the size of the angle $\angle AMC$?

Does the collection of algebraic/number-theoretic methods applied to Euclidean Geometry have a name?

Derive a relation between angles A,B and C

Homeomorphism from $S^1\setminus(0,1)$ to $\mathbb{R}$

Geometry, triangle incenter problem

Existence of non obtuse angle of n+2 vectors in n-dimensional euclidean space.

Geometry-Triangle

Prove triangle similiarity by given expression

Analytical Geometry medial triangle

Prove concurrency in a triangle

Draw a line between an observer and the current direction of the sun

Cutting a pie into n equal area pieces with the minimum distance of cuts.

Proof - Elementar Geometry (parallelogram)

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