Projection of the line segment joining the points $(3,4,5)$ and $(4,6,3)$ on the straight line obtained by joining the points $(-1,2,4)$ and $(1,0,5)$

score 300 · Answer 8 · 2026-03-17 03:19:27

300

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show that three points are collinear

Published on 17 Mar 2026 - 3:19

score 74 · Answer 9 · 2026-03-25 09:08:08

74

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Given $3n+1$ points such that any $4$ of them contain a pair at distance at most $1$, then $n+1$ fit in a disc of radius $1$.

Published on 25 Mar 2026 - 9:08

score 212 · Answer 10 · 2026-03-25 11:20:43

212

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Question on the span of a tangent plane

Published on 25 Mar 2026 - 11:20

score 521 · Answer 11 · 2026-03-20 12:26:57

521

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Non orthogonal projection of a point onto a plane

Published on 20 Mar 2026 - 12:26

score 235 · Answer 12 · 2026-03-25 11:34:57

235

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A concentric circle problem

Published on 25 Mar 2026 - 11:34

score 59 · Answer 13 · 2026-03-24 22:07:39

59

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Terminology - How to differentiate a polygon which is a bounded region and a polygon which is the boundary of a bounded region?

Published on 24 Mar 2026 - 22:07

score 566 · Answer 14 · 2026-03-17 11:08:45

566

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Sampling points on a plane defined by three points

Published on 17 Mar 2026 - 11:08

score 31 · Answer 15 · 2026-03-17 10:36:47

31

Views

Find $B=(x,y)$ so triangle is equilateral

Published on 17 Mar 2026 - 10:36

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Projection of the line segment joining the points $(3,4,5)$ and $(4,6,3)$ on the straight line obtained by joining the points $(-1,2,4)$ and $(1,0,5)$

show that three points are collinear

Given $3n+1$ points such that any $4$ of them contain a pair at distance at most $1$, then $n+1$ fit in a disc of radius $1$.

Question on the span of a tangent plane

Non orthogonal projection of a point onto a plane

A concentric circle problem

Terminology - How to differentiate a polygon which is a bounded region and a polygon which is the boundary of a bounded region?

Sampling points on a plane defined by three points

Find $B=(x,y)$ so triangle is equilateral

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