List questions from geometric-transformation

Published on 23 Jan 2015 - 14:23

2.2k

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Locating three sets of collinear points

Published on 19 Mar 2026 - 8:37

1.6k

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Locus of vertice of equilateral triangle.

Published on 01 Dec 2015 - 18:47

69

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Use only Symmetry in question related to triangle to prove $\angle KPQ = \angle PKL$

Published on 24 Feb 2016 - 17:15

1.5k

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Understanding perspective transform matrix elements interpretation

Published on 14 Jun 2013 - 9:09

398

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Homothety geometry

Published on 04 Nov 2013 - 6:29

385

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Rotations and reflections in ${\bf R}^3$.

Published on 06 Dec 2013 - 2:24

400

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Constructing image under homography from known information

Published on 05 Jan 2014 - 15:14

70

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An inversion maps one point to another

Published on 23 May 2017 - 8:23

121

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Prove that the center of the circumcircle of triangle $OPQ$ belongs to a fixed line

Published on 17 Jul 2017 - 11:12

211

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Circle $\Omega$ is tangent to circles $\omega_1$ and $\omega_2$ at points $A_1$ and $A_2$, respectively. Let $B$ be a point on $\Omega$

Published on 09 Aug 2017 - 7:25

325

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How to find $ \alpha + \beta $ here

Published on 25 Mar 2026 - 14:20

176

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What is area of the image of the unit disk under the mapping $(x,y)\to \left(\frac{x+y}{\sqrt{2}},\frac{y-x}{\sqrt{2}}\right)$?

Published on 13 Aug 2017 - 14:43

93

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Vectors Question about proving if sides of square are perpendicular.

Published on 16 Aug 2017 - 8:11

159

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Prove that $DG+HE=GH$ for the given figure.

Published on 01 Sep 2017 - 9:35

List Question

Prove that $\angle DAP=\angle CAB$ in a parallelogram $ABCD$

Locating three sets of collinear points

Locus of vertice of equilateral triangle.

Use only Symmetry in question related to triangle to prove $\angle KPQ = \angle PKL$

Understanding perspective transform matrix elements interpretation

Homothety geometry

Rotations and reflections in ${\bf R}^3$.

Constructing image under homography from known information

An inversion maps one point to another

Prove that the center of the circumcircle of triangle $OPQ$ belongs to a fixed line

Circle $\Omega$ is tangent to circles $\omega_1$ and $\omega_2$ at points $A_1$ and $A_2$, respectively. Let $B$ be a point on $\Omega$

How to find $ \alpha + \beta $ here

What is area of the image of the unit disk under the mapping $(x,y)\to \left(\frac{x+y}{\sqrt{2}},\frac{y-x}{\sqrt{2}}\right)$?

Vectors Question about proving if sides of square are perpendicular.

Prove that $DG+HE=GH$ for the given figure.

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