Question

Is it possible that a trapezium with angles at one side both equal to 60° has all vertices in lattice points?

score 91 · Answer 1 · 2026-04-11 19:22:13

91

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Is it possible that a trapezium with angles at one side both equal to 60° has all vertices in lattice points?

Published on 11 Apr 2026 - 19:22

score 2.3k · Answer 2 · 2026-04-15 05:52:23

2.3k

Views

Rotate a line around origin to pass through a given point, how to find the rotate angle

Published on 15 Apr 2026 - 5:52

score 180 · Answer 3 · 2026-04-24 14:01:20

180

Views

Given the end points of the semi major axis, and 2 other points, is it possible to find the equation of an ellipse?

Published on 24 Apr 2026 - 14:01

score 1.5k · Answer 4 · 2026-04-09 22:20:34

1.5k

Views

Equation of circumcircle

Published on 09 Apr 2026 - 22:20

score 81 · Answer 5 · 2026-04-14 20:44:43

81

Views

Maximum value for $M^4$

Published on 14 Apr 2026 - 20:44

score 61 · Answer 6 · 2026-04-12 00:00:01

61

Views

A diversion from Invertibility

Published on 12 Apr 2026 - 0:00

score 136 · Answer 7 · 2026-04-14 10:00:54

136

Views

Normal to a Hyperbola at Five Points Passes Through Origin

Published on 14 Apr 2026 - 10:00

score 171 · Answer 8 · 2026-04-10 18:35:49

171

Views

matrix representation of pure quaternion

Published on 10 Apr 2026 - 18:35

score 138 · Answer 9 · 2026-04-16 07:29:20

138

Views

find coordinates of rotated sigmoidal curve

Published on 16 Apr 2026 - 7:29

score 1k · Answer 10 · 2026-04-16 07:59:07

1k

Views

Section of cone through the rotated plane (with and without offset)

Published on 16 Apr 2026 - 7:59

score 204 · Answer 11 · 2026-04-13 23:19:58

204

Views

Find the orthocentre of a triangle with vertices $A(0,0)$, $B(3,0)$ and $C(0,4)$

Published on 13 Apr 2026 - 23:19

score 10.7k · Answer 12 · 2026-04-15 23:29:31

10.7k

Views

Find the equation of the diameter of the circle having equation $x^2+y^2-6x+2y-8=0$

Published on 15 Apr 2026 - 23:29

score 134 · Answer 13 · 2026-04-15 18:58:01

134

Views

The equation $(x^2-4)^2 + (y^2-9)^2 = 0$ represents points:

Published on 15 Apr 2026 - 18:58

score 56 · Answer 14 · 2026-04-10 09:42:08

56

Views

Relationship between the inverses of two functions

Published on 10 Apr 2026 - 9:42

score 95 · Answer 15 · 2026-04-12 20:34:11

95

Views

Show you can't fit a more expensive box into a cheaper one

Published on 12 Apr 2026 - 20:34

List Question

Is it possible that a trapezium with angles at one side both equal to 60° has all vertices in lattice points?

Rotate a line around origin to pass through a given point, how to find the rotate angle

Given the end points of the semi major axis, and 2 other points, is it possible to find the equation of an ellipse?

Equation of circumcircle

Maximum value for $M^4$

A diversion from Invertibility

Normal to a Hyperbola at Five Points Passes Through Origin

matrix representation of pure quaternion

find coordinates of rotated sigmoidal curve

Section of cone through the rotated plane (with and without offset)

Find the orthocentre of a triangle with vertices $A(0,0)$, $B(3,0)$ and $C(0,4)$

Find the equation of the diameter of the circle having equation $x^2+y^2-6x+2y-8=0$

The equation $(x^2-4)^2 + (y^2-9)^2 = 0$ represents points:

Relationship between the inverses of two functions

Show you can't fit a more expensive box into a cheaper one

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