Question

Proof maximum number of equidistant points for a given dimension

score 3.6k · Answer 1 · 2018-01-27 02:33:00

3.6k

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Proof maximum number of equidistant points for a given dimension

Published on 27 Jan 2018 - 2:33

score 8.3k · Answer 2 · 2018-01-27 04:41:47

8.3k

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Suppose we have an inscribed isosceles triangle in a circle.

Published on 27 Jan 2018 - 4:41

score 405 · Answer 3 · 2026-03-25 01:25:38

405

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Projection in Euclidean space on hyperplane

Published on 25 Mar 2026 - 1:25

score 909 · Answer 4 · 2026-03-23 15:40:14

909

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Find the measure of ∠PRQ, with points $P(0, 3, 0) \;\;\; Q(-3, 4, 2) \;\;\; R(-2, 9, 1) \;$

Published on 23 Mar 2026 - 15:40

score 219 · Answer 5 · 2026-03-24 19:01:04

219

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The distances of a point from the vertices of an equilateral triangle fulfill the triangle inequality

Published on 24 Mar 2026 - 19:01

score 242 · Answer 6 · 2026-03-25 12:53:54

242

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Does there always exist one plane onto which any two lines in $\Bbb{R}^3$ can be projected and intersect?

Published on 25 Mar 2026 - 12:53

score 127 · Answer 7 · 2026-03-20 04:26:51

127

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General problem Euclidean geometry

Published on 20 Mar 2026 - 4:26

score 274 · Answer 8 · 2026-03-24 22:08:17

274

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What means "equal" in Euclid 4th postulate?

Published on 24 Mar 2026 - 22:08

score 153 · Answer 9 · 2026-03-21 23:09:25

153

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Why are they congruent?

Published on 21 Mar 2026 - 23:09

score 249 · Answer 10 · 2026-03-24 22:08:14

249

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What do "mod $2x$" and "mod $x$" mean when used with angles?

Published on 24 Mar 2026 - 22:08

score 351 · Answer 11 · 2018-01-31 22:47:22

351

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Find a formula in terms of $a, b$ and $c$, for reflection in an arbitrary line $ax + by + c = 0 \in \mathbb{R}^{2}$.

Published on 31 Jan 2018 - 22:47

score 385 · Answer 12 · 2026-03-20 21:37:09

385

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A quadrilateral with only one diagonal bisected and one pair of opposite congruent sides.

Published on 20 Mar 2026 - 21:37

score 507 · Answer 13 · 2018-02-01 03:27:25

507

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How to prove this geometry question on quadrilateral and circles?

Published on 01 Feb 2018 - 3:27

score 2.5k · Answer 14 · 2026-03-25 13:32:10

2.5k

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Proving Monge's Theorem using Menelaus'

Published on 25 Mar 2026 - 13:32

score 423 · Answer 15 · 2026-03-22 21:23:48

423

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Square inside a triangle problem [see desc.]

Published on 22 Mar 2026 - 21:23

List Question

Proof maximum number of equidistant points for a given dimension

Suppose we have an inscribed isosceles triangle in a circle.

Projection in Euclidean space on hyperplane

Find the measure of ∠PRQ, with points $P(0, 3, 0) \;\;\; Q(-3, 4, 2) \;\;\; R(-2, 9, 1) \;$

The distances of a point from the vertices of an equilateral triangle fulfill the triangle inequality

Does there always exist one plane onto which any two lines in $\Bbb{R}^3$ can be projected and intersect?

General problem Euclidean geometry

What means "equal" in Euclid 4th postulate?

Why are they congruent?

What do "mod $2x$" and "mod $x$" mean when used with angles?

Find a formula in terms of $a, b$ and $c$, for reflection in an arbitrary line $ax + by + c = 0 \in \mathbb{R}^{2}$.

A quadrilateral with only one diagonal bisected and one pair of opposite congruent sides.

How to prove this geometry question on quadrilateral and circles?

Proving Monge's Theorem using Menelaus'

Square inside a triangle problem [see desc.]

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