Question

Equations to determine center of arc with start at origin, second known point, and given central angle

score 63 · Answer 1 · 2026-04-12 08:37:01

63

Views

Equations to determine center of arc with start at origin, second known point, and given central angle

Published on 12 Apr 2026 - 8:37

score 84 · Answer 2 · 2026-04-13 16:52:25

84

Views

Theorems linking the Lie group of the circle and circle homeomorphisms

Published on 13 Apr 2026 - 16:52

score 34 · Answer 3 · 2026-04-14 17:51:09

34

Views

Maximizing minimum distance of elements of array in S1

Published on 14 Apr 2026 - 17:51

score 585 · Answer 4 · 2026-04-28 18:53:18

585

Views

I created a Sangaku-style geometry problem involving an equilateral triangle and three circles. Can you solve it without a computer?

Published on 28 Apr 2026 - 18:53

score 64 · Answer 5 · 2026-04-11 11:09:51

64

Views

Solving a circle equation using tangent property

Published on 11 Apr 2026 - 11:09

score 490 · Answer 6 · 2026-04-29 11:04:50

490

Views

Self-made Sangaku-style geometry problem involving chords and inscribed circles

Published on 29 Apr 2026 - 11:04

score 80 · Answer 7 · 2026-04-10 22:58:15

80

Views

finding angle between a chord and a tangent

Published on 10 Apr 2026 - 22:58

score 469 · Answer 8 · 2026-04-15 12:14:34

469

Views

You have $n$ rectangles of area $1$ (and variable height). Pack as many as possible in a semicircle of area $n$. How many leftovers will there be?

Published on 15 Apr 2026 - 12:14

score 72 · Answer 9 · 2026-04-13 01:45:56

72

Views

How to construct (with straightedge and compass) this diagram with four circles and two chords?

Published on 13 Apr 2026 - 1:45

score 1.3k · Answer 10 · 2026-04-16 08:55:14

1.3k

Views

Crazy fact(?) about circles drawn on base of triangle between cevians: they always fit, no matter what their order?

Published on 16 Apr 2026 - 8:55

score 112 · Answer 11 · 2026-04-16 20:40:56

112

Views

Can this simple diagram of a triangle and three circles be constructed with straightedge and compass?

Published on 16 Apr 2026 - 20:40

score 63 · Answer 12 · 2026-04-11 18:09:54

63

Views

Finding the angle between the $x$-axis and a tangent drawn to a circle from the origin

Published on 11 Apr 2026 - 18:09

score 128 · Answer 13 · 2026-04-20 11:22:56

128

Views

Stopping distance for object moving in a circle

Published on 20 Apr 2026 - 11:22

score 150 · Answer 14 · 2026-04-14 18:39:18

150

Views

Evaluating area of a circle using integration. $\int_{0}^{R} \sqrt{R^2 - x^2} dx$

Published on 14 Apr 2026 - 18:39

score 115 · Answer 15 · 2026-04-16 04:45:43

115

Views

Use of tilde symbol $\sim$ irrespective of its general use

Published on 16 Apr 2026 - 4:45

List Question

Equations to determine center of arc with start at origin, second known point, and given central angle

Theorems linking the Lie group of the circle and circle homeomorphisms

Maximizing minimum distance of elements of array in S1

I created a Sangaku-style geometry problem involving an equilateral triangle and three circles. Can you solve it without a computer?

Solving a circle equation using tangent property

Self-made Sangaku-style geometry problem involving chords and inscribed circles

finding angle between a chord and a tangent

You have $n$ rectangles of area $1$ (and variable height). Pack as many as possible in a semicircle of area $n$. How many leftovers will there be?

How to construct (with straightedge and compass) this diagram with four circles and two chords?

Crazy fact(?) about circles drawn on base of triangle between cevians: they always fit, no matter what their order?

Can this simple diagram of a triangle and three circles be constructed with straightedge and compass?

Finding the angle between the $x$-axis and a tangent drawn to a circle from the origin

Stopping distance for object moving in a circle

Evaluating area of a circle using integration. $\int_{0}^{R} \sqrt{R^2 - x^2} dx$

Use of tilde symbol $\sim$ irrespective of its general use

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