Question

cyclic quad, circle theorems, that came on my test

score 84 · Answer 1 · 2017-11-17 21:48:43

84

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cyclic quad, circle theorems, that came on my test

Published on 17 Nov 2017 - 21:48

score 88 · Answer 2 · 2017-11-18 16:00:42

88

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Planimetry task about trapezoid.

Published on 18 Nov 2017 - 16:00

score 81 · Answer 3 · 2026-03-29 18:32:19

81

Views

Projection of a vector on a plane in $\Bbb{R}^4$

Published on 29 Mar 2026 - 18:32

score 26 · Answer 4 · 2026-03-26 22:13:42

26

Views

Non-affine map that conserves the kernel of a differential operator

Published on 26 Mar 2026 - 22:13

score 91 · Answer 5 · 2017-11-21 21:56:05

91

Views

How to find $2$ points on $2$ separate lines that are closest to each other

Published on 21 Nov 2017 - 21:56

score 518 · Answer 6 · 2017-11-22 17:59:46

518

Views

Proof of equivalence of the fifth Euclid's postulate

Published on 22 Nov 2017 - 17:59

score 420 · Answer 7 · 2017-11-22 18:30:07

420

Views

Intuition on the skew Line distances

Published on 22 Nov 2017 - 18:30

score 187 · Answer 8 · 2017-11-23 21:52:08

Find the equations of the tangent plane and normal line to surface $z = \sin(2x - y)$ at point $P(\frac{-\pi}{3}, \frac{\pi}{2}, -\frac{1}{2})$

score 66 · Answer 9 · 2026-03-29 20:11:30

66

Views

Find the equation of the plane that contains point A(3,0,1) and is parallel to vectors $\vec{u} = (1,2,0)$ and $\vec{v} = (0,3,1)$

Published on 29 Mar 2026 - 20:11

score 1k · Answer 10 · 2026-03-25 10:57:11

1k

Views

Equations of facelets of dodecahedron

Published on 25 Mar 2026 - 10:57

score 115 · Answer 11 · 2017-11-27 21:30:48

115

Views

Find the volume of the solid delimited by the planes $x = y + 2z + 1$, $x = 0$, $y = 0$, $z = 0$ and $3y + z - 3 = 0$. Sketch it also.

Published on 27 Nov 2017 - 21:30

score 1.4k · Answer 12 · 2026-03-29 12:41:12

1.4k

Views

How to intersect a line with a point off the page using a straight edge and compass (see description)

Published on 29 Mar 2026 - 12:41

score 750 · Answer 13 · 2017-12-04 18:17:29

750

Views

Intersection between three planes - geometric configurations for non-unique solutions

Published on 04 Dec 2017 - 18:17

score 194 · Answer 14 · 2017-12-05 01:55:48

194

Views

Find equation of line $L$ such that rea of paralellogram is least

Published on 05 Dec 2017 - 1:55

score 150 · Answer 15 · 2017-12-05 20:14:03

150

Views

Find the points in a plane using reflection

Published on 05 Dec 2017 - 20:14

List Question

cyclic quad, circle theorems, that came on my test

Planimetry task about trapezoid.

Projection of a vector on a plane in $\Bbb{R}^4$

Non-affine map that conserves the kernel of a differential operator

How to find $2$ points on $2$ separate lines that are closest to each other

Proof of equivalence of the fifth Euclid's postulate

Intuition on the skew Line distances

Find the equations of the tangent plane and normal line to surface $z = \sin(2x - y)$ at point $P(\frac{-\pi}{3}, \frac{\pi}{2}, -\frac{1}{2})$

Find the equation of the plane that contains point A(3,0,1) and is parallel to vectors $\vec{u} = (1,2,0)$ and $\vec{v} = (0,3,1)$

Equations of facelets of dodecahedron

Find the volume of the solid delimited by the planes $x = y + 2z + 1$, $x = 0$, $y = 0$, $z = 0$ and $3y + z - 3 = 0$. Sketch it also.

How to intersect a line with a point off the page using a straight edge and compass (see description)

Intersection between three planes - geometric configurations for non-unique solutions

Find equation of line $L$ such that rea of paralellogram is least

Find the points in a plane using reflection

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