Question

In any triangle $ ABC $ $\frac {sin(B-C)}{sin (B+C)}=\frac {b^2-c^2}{a^2} $.

score 83 · Answer 1 · 2026-04-13 16:49:49

83

Views

In any triangle $ ABC $ $\frac {sin(B-C)}{sin (B+C)}=\frac {b^2-c^2}{a^2} $.

Published on 13 Apr 2026 - 16:49

score 866 · Answer 2 · 2026-04-10 13:45:15

866

Views

composition of stereographic projections is inversion through the ball - a geometric way

Published on 10 Apr 2026 - 13:45

score 841 · Answer 3 · 2016-09-15 08:38:12

841

Views

Euclidean Circle Geometry. Calculating the Radius

Published on 15 Sep 2016 - 8:38

score 108 · Answer 4 · 2026-04-11 05:15:47

108

Views

Euclidean Geometry Circles

Published on 11 Apr 2026 - 5:15

score 31 · Answer 5 · 2016-09-15 16:13:04

31

Views

Similarity of triangles

Published on 15 Sep 2016 - 16:13

score 259 · Answer 6 · 2026-03-28 16:56:44

259

Views

Orthodiagonal quadrilateral

Published on 28 Mar 2026 - 16:56

score 49 · Answer 7 · 2026-04-10 10:15:03

49

Views

How to model the geometry of a circular mobility?

Published on 10 Apr 2026 - 10:15

score 79 · Answer 8 · 2016-09-15 22:20:09

79

Views

Projections of lines in $\mathbb{R}^n$ to the torus $\mathbb{T}^n$

Published on 15 Sep 2016 - 22:20

score 1.9k · Answer 9 · 2026-04-11 07:06:32

1.9k

Views

Difference between a convex hull and alpha shape

Published on 11 Apr 2026 - 7:06

score 92 · Answer 10 · 2026-04-13 07:09:18

92

Views

Prove that $\angle FME=90$ (WITHOUT using triangle identity) and show that $ME=MF$

Published on 13 Apr 2026 - 7:09

score 83 · Answer 11 · 2026-04-13 09:37:34

83

Views

Assume that a part of ∆ABC around vertex A is not visible. Describe how to find the angle bisector of ∠CAB.

Published on 13 Apr 2026 - 9:37

score 277 · Answer 12 · 2026-04-13 14:24:27

277

Views

A geometric locus in a equilateral triangle

Published on 13 Apr 2026 - 14:24

score 135 · Answer 13 · 2026-04-05 04:54:16

135

Views

True? "A rectangle is a subset of a circle if and only if all its vertices are in the circle (or its boundary)."

Published on 05 Apr 2026 - 4:54

score 66 · Answer 14 · 2026-04-13 18:20:47

66

Views

Find the possible values of angle $A$ in which $BX\cdot AB=IB^2$, $CY\cdot AC=IC^2$.

Published on 13 Apr 2026 - 18:20

score 75 · Answer 15 · 2026-04-06 22:18:34

75

Views

Prove that G is laying on K and find the ratio of AH to HB.

Published on 06 Apr 2026 - 22:18

List Question

In any triangle $ ABC $ $\frac {sin(B-C)}{sin (B+C)}=\frac {b^2-c^2}{a^2} $.

composition of stereographic projections is inversion through the ball - a geometric way

Euclidean Circle Geometry. Calculating the Radius

Euclidean Geometry Circles

Similarity of triangles

Orthodiagonal quadrilateral

How to model the geometry of a circular mobility?

Projections of lines in $\mathbb{R}^n$ to the torus $\mathbb{T}^n$

Difference between a convex hull and alpha shape

Prove that $\angle FME=90$ (WITHOUT using triangle identity) and show that $ME=MF$

Assume that a part of ∆ABC around vertex A is not visible. Describe how to find the angle bisector of ∠CAB.

A geometric locus in a equilateral triangle

True? "A rectangle is a subset of a circle if and only if all its vertices are in the circle (or its boundary)."

Find the possible values of angle $A$ in which $BX\cdot AB=IB^2$, $CY\cdot AC=IC^2$.

Prove that G is laying on K and find the ratio of AH to HB.

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