Question

Elementary problem in geometry

score 57 · Answer 1 · 2026-04-12 09:55:29

57

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Elementary problem in geometry

Published on 12 Apr 2026 - 9:55

score 526 · Answer 2 · 2026-04-16 03:11:45

526

Views

How is $\sin 45^\circ=\frac{1}{\sqrt 2}$?

Published on 16 Apr 2026 - 3:11

score 103 · Answer 3 · 2026-04-17 04:02:25

103

Views

Generalization to higher dimensions of a statement about plane triangles

Published on 17 Apr 2026 - 4:02

score 273 · Answer 4 · 2026-04-12 11:46:28

273

Views

Alternative proof for the equality of two angles in an isosceles triangle.

Published on 12 Apr 2026 - 11:46

score 98 · Answer 5 · 2026-04-11 17:03:49

98

Views

Proving that $ ABC$ is similar to $DQP$

Published on 11 Apr 2026 - 17:03

score 15.4k · Answer 6 · 2026-04-16 16:12:20

15.4k

Views

Distance between orthocenter and circumcenter.

Published on 16 Apr 2026 - 16:12

score 286 · Answer 7 · 2026-04-15 16:11:27

How would you find the length of a side of a triangle where 2 sides are known and the length of a line in the middle is also known?

score 18.9k · Answer 8 · 2026-04-15 04:05:11

18.9k

Views

Minimum value of $\cos A+\cos B+\cos C$ in a triangle $ABC$

Published on 15 Apr 2026 - 4:05

score 17.9k · Answer 9 · 2026-04-14 17:09:24

17.9k

Views

Find perimeter and angle of triangle using three 3d vectors .

Published on 14 Apr 2026 - 17:09

score 6.7k · Answer 10 · 2026-04-11 17:45:53

6.7k

Views

Is it possible to find the vertices of an equilateral triangle given its center point?

Published on 11 Apr 2026 - 17:45

score 758 · Answer 11 · 2026-04-16 10:43:09

758

Views

Find angles between sides of triangle and coordinate planes ($xy,yz,zx$ planes) using three 3d vectors .

Published on 16 Apr 2026 - 10:43

score 7.1k · Answer 12 · 2026-04-12 18:41:48

7.1k

Views

The position of a ladder leaning against a wall and touching a box under it

Published on 12 Apr 2026 - 18:41

score 3.2k · Answer 13 · 2026-04-15 22:18:17

3.2k

Views

Explain why two right triangles, each with an acute angle of 17 degrees, must be similar.

Published on 15 Apr 2026 - 22:18

score 1.5k · Answer 14 · 2026-04-13 19:57:26

1.5k

Views

If a 16' ladder is placed correctly on a level surface, how high up will the ladder reach?

Published on 13 Apr 2026 - 19:57

score 110 · Answer 15 · 2026-04-10 14:08:46

110

Views

What angle does the board need to be cut at?

Published on 10 Apr 2026 - 14:08

List Question

Elementary problem in geometry

How is $\sin 45^\circ=\frac{1}{\sqrt 2}$?

Generalization to higher dimensions of a statement about plane triangles

Alternative proof for the equality of two angles in an isosceles triangle.

Proving that $ ABC$ is similar to $DQP$

Distance between orthocenter and circumcenter.

How would you find the length of a side of a triangle where 2 sides are known and the length of a line in the middle is also known?

Minimum value of $\cos A+\cos B+\cos C$ in a triangle $ABC$

Find perimeter and angle of triangle using three 3d vectors .

Is it possible to find the vertices of an equilateral triangle given its center point?

Find angles between sides of triangle and coordinate planes ($xy,yz,zx$ planes) using three 3d vectors .

The position of a ladder leaning against a wall and touching a box under it

Explain why two right triangles, each with an acute angle of 17 degrees, must be similar.

If a 16' ladder is placed correctly on a level surface, how high up will the ladder reach?

What angle does the board need to be cut at?

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