Question

How many equilateral triangles of side 1 are there in an irregular hexagon?

score 63 · Answer 1 · 2019-10-16 21:28:46

63

Views

How many equilateral triangles of side 1 are there in an irregular hexagon?

Published on 16 Oct 2019 - 21:28

score 96 · Answer 2 · 2019-10-16 23:17:24

96

Views

Geometry - A trigonometric question involving two equilateral triangles and their side lengths.

Published on 16 Oct 2019 - 23:17

score 1k · Answer 3 · 2026-04-01 10:01:31

1k

Views

Why does the sign of this determinant change when changing the sense of vertices?

Published on 01 Apr 2026 - 10:01

score 236 · Answer 4 · 2026-02-23 06:40:52

236

Views

Locus of centroid of a $\triangle{ABC}$ with $A=(\cos\alpha,\sin\alpha)$, $B=(\sin\alpha,-\cos\alpha)$, and $C=(1,2)$

Published on 23 Feb 2026 - 6:40

score 12.9k · Answer 5 · 2019-10-18 11:04:36

How to find the length of the sides of an isosceles right triangle given its hypotenuse ? (Without trigonometry)

score 1.3k · Answer 6 · 2026-03-29 18:33:35

1.3k

Views

Find the excentre of the triangle formed by the points (0,3), (4,0), and (0,0) which is opposite to (0,0)

Published on 29 Mar 2026 - 18:33

score 37 · Answer 7 · 2026-03-30 18:11:25

37

Views

The largest triangle between fuctions

Published on 30 Mar 2026 - 18:11

score 794 · Answer 8 · 2026-03-27 13:38:41

794

Views

How many right triangles can be built from points

Published on 27 Mar 2026 - 13:38

score 183 · Answer 9 · 2026-04-01 09:59:25

183

Views

Smallest area of triangle

Published on 01 Apr 2026 - 9:59

score 766 · Answer 10 · 2019-10-20 14:38:37

finding a triangle where the square root of two sides is equal to the square root of third side and all side have natural lengths

score 174 · Answer 11 · 2019-10-21 13:36:30

174

Views

What are the angles of this triangle?

Published on 21 Oct 2019 - 13:36

score 98 · Answer 12 · 2019-10-21 13:52:44

98

Views

Similar Triangle drawn on concurrent cevians

Published on 21 Oct 2019 - 13:52

score 156 · Answer 13 · 2019-10-21 15:45:49

156

Views

APMO 2007 problem 2 solution

Published on 21 Oct 2019 - 15:45

score 536 · Answer 14 · 2026-03-27 07:49:44

536

Views

How to determine whether a triangle is obtuse angled or not from the equation of its sides?

Published on 27 Mar 2026 - 7:49

score 19 · Answer 15 · 2019-10-22 15:39:31

19

Views

If E,F,G is the altitude of triangle and D is on EF does that mean angle ADC=90?

Published on 22 Oct 2019 - 15:39

List Question

How many equilateral triangles of side 1 are there in an irregular hexagon?

Geometry - A trigonometric question involving two equilateral triangles and their side lengths.

Why does the sign of this determinant change when changing the sense of vertices?

Locus of centroid of a $\triangle{ABC}$ with $A=(\cos\alpha,\sin\alpha)$, $B=(\sin\alpha,-\cos\alpha)$, and $C=(1,2)$

How to find the length of the sides of an isosceles right triangle given its hypotenuse ? (Without trigonometry)

Find the excentre of the triangle formed by the points (0,3), (4,0), and (0,0) which is opposite to (0,0)

The largest triangle between fuctions

How many right triangles can be built from points

Smallest area of triangle

finding a triangle where the square root of two sides is equal to the square root of third side and all side have natural lengths

What are the angles of this triangle?

Similar Triangle drawn on concurrent cevians

APMO 2007 problem 2 solution

How to determine whether a triangle is obtuse angled or not from the equation of its sides?

If E,F,G is the altitude of triangle and D is on EF does that mean angle ADC=90?

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