List questions from homothety

Published on 22 Feb 2026 - 19:10

125

Views

Show that this homothety takes $K$ to $M$

Published on 27 Mar 2018 - 14:17

99

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Why are circles homothetic in this problem?

Published on 15 May 2018 - 20:31

62

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Homotheties involved in a parallelogram

Published on 03 Jun 2018 - 22:36

274

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Quadrilaterals and parallel lines: An olympiad question

Published on 24 Sep 2018 - 16:47

416

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How to pick a "center" of a concave polygon?

Published on 31 Jan 2019 - 16:43

267

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In $\triangle ABC$, $AD$ $\perp$ $BC$ and $GE$ is the extended line of $DG$ where $G$ is centroid. Prove that $GD$ = $\frac{EG}{2}$

Published on 15 Feb 2019 - 16:08

276

Views

How gradient transform under homotety

Published on 09 Apr 2019 - 21:52

103

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$A=\lambda I_n\iff (\forall M,N\in M_n(\mathbb{R}),~ MN=A \Rightarrow ~ NM=A)$

Published on 20 Apr 2019 - 15:03

367

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Olympiad Geometry | Homothety

Published on 04 Jul 2019 - 0:02

803

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Olympiad Geometry | Homothety 2

Published on 04 Jul 2019 - 18:11

251

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Ceva's Theorem- Homothetic Triangles

Published on 31 Jul 2019 - 17:39

110

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Error on Wikipedia about Dilations

Published on 08 Aug 2019 - 13:15

130

Views

Olympiad math problem - Show that a pair of lines is parallel

Published on 27 Feb 2020 - 16:07

103

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About Euler's line.

Published on 28 Feb 2020 - 11:34

List Question

Every conformal vector field on $\mathbb{R}^n$ is homothetic?

Show that this homothety takes $K$ to $M$

Why are circles homothetic in this problem?

Homotheties involved in a parallelogram

Quadrilaterals and parallel lines: An olympiad question

How to pick a "center" of a concave polygon?

In $\triangle ABC$, $AD$ $\perp$ $BC$ and $GE$ is the extended line of $DG$ where $G$ is centroid. Prove that $GD$ = $\frac{EG}{2}$

How gradient transform under homotety

$A=\lambda I_n\iff (\forall M,N\in M_n(\mathbb{R}),~ MN=A \Rightarrow ~ NM=A)$

Olympiad Geometry | Homothety

Olympiad Geometry | Homothety 2

Ceva's Theorem- Homothetic Triangles

Error on Wikipedia about Dilations

Olympiad math problem - Show that a pair of lines is parallel

About Euler's line.

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