Question

Unable to find all angles of a trigonometric triangle

score 108 · Answer 1 · 2023-05-31 19:06:23

108

Views

Unable to find all angles of a trigonometric triangle

Published on 31 May 2023 - 19:06

score 56 · Answer 2 · 2023-05-31 23:32:07

56

Views

Prove that angle is bigger than the other algebraically

Published on 31 May 2023 - 23:32

score 1.3k · Answer 3 · 2026-03-28 05:23:22

1.3k

Views

Crazy fact(?) about circles drawn on base of triangle between cevians: they always fit, no matter what their order?

Published on 28 Mar 2026 - 5:23

score 108 · Answer 4 · 2026-03-27 17:04:27

108

Views

Can this simple diagram of a triangle and three circles be constructed with straightedge and compass?

Published on 27 Mar 2026 - 17:04

score 46 · Answer 5 · 2023-06-03 15:19:50

46

Views

Reference for proof that the circumcenter of an acute triangle lies in the inside

Published on 03 Jun 2023 - 15:19

score 66 · Answer 6 · 2026-03-29 16:50:19

66

Views

Maximize product of two sines given sum of angles

Published on 29 Mar 2026 - 16:50

score 247 · Answer 7 · 2026-03-23 00:06:39

247

Views

If a stick is broken at five random points, what is the probability that the pieces can form two triangles?

Published on 23 Mar 2026 - 0:06

score 125 · Answer 8 · 2026-04-09 11:18:09

125

Views

Prove that a triangle exists using the triangle inequality.

Published on 09 Apr 2026 - 11:18

score 48 · Answer 9 · 2023-06-08 17:54:36

48

Views

Why is $\Delta ABC\sim \Delta AEC\sim \Delta FBC$?

Published on 08 Jun 2023 - 17:54

score 151 · Answer 10 · 2023-06-09 08:32:46

151

Views

How to rotate a square so that it's a given width

Published on 09 Jun 2023 - 8:32

score 305 · Answer 11 · 2026-03-23 09:36:47

305

Views

Break a stick at $n$ random points. What is the probability that the three shortest pieces can form a triangle, as $n\to\infty$?

Published on 23 Mar 2026 - 9:36

score 72 · Answer 12 · 2026-04-09 04:49:17

72

Views

Flux through tetrahedron and parametrization of triangular surfaces

Published on 09 Apr 2026 - 4:49

score 120 · Answer 13 · 2026-04-01 04:20:06

120

Views

Prove that triangle $EDC$ is similar to triangle $EAB$, given $CD$ is parallel to $AB$

Published on 01 Apr 2026 - 4:20

score 78 · Answer 14 · 2026-03-29 16:49:32

78

Views

Why square side from its diagonal does not equal $\frac{\sqrt{2}}{2}$?

Published on 29 Mar 2026 - 16:49

score 111 · Answer 15 · 2026-04-09 11:24:36

111

Views

Seeking Help for any Alternative Approaches to Find $∠CAD$

Published on 09 Apr 2026 - 11:24

List Question

Unable to find all angles of a trigonometric triangle

Prove that angle is bigger than the other algebraically

Crazy fact(?) about circles drawn on base of triangle between cevians: they always fit, no matter what their order?

Can this simple diagram of a triangle and three circles be constructed with straightedge and compass?

Reference for proof that the circumcenter of an acute triangle lies in the inside

Maximize product of two sines given sum of angles

If a stick is broken at five random points, what is the probability that the pieces can form two triangles?

Prove that a triangle exists using the triangle inequality.

Why is $\Delta ABC\sim \Delta AEC\sim \Delta FBC$?

How to rotate a square so that it's a given width

Break a stick at $n$ random points. What is the probability that the three shortest pieces can form a triangle, as $n\to\infty$?

Flux through tetrahedron and parametrization of triangular surfaces

Prove that triangle $EDC$ is similar to triangle $EAB$, given $CD$ is parallel to $AB$

Why square side from its diagonal does not equal $\frac{\sqrt{2}}{2}$?

Seeking Help for any Alternative Approaches to Find $∠CAD$

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