Question

All triangles that have the same orthocenter and circumcircle have the same nine-point circle

score 438 · Answer 1 · 2026-04-28 15:25:05

All triangles that have the same orthocenter and circumcircle have the same nine-point circle

Published on 28 Apr 2026 - 15:25

score 133 · Answer 2 · 2026-04-14 20:36:45

How can I find the radius R of a circle big enough to have n circles of different radii centered on its circumference, separated by an angle theta?

score 562 · Answer 3 · 2026-05-10 20:30:31

562

Views

Circle inversion of a circle

Published on 10 May 2026 - 20:30

score 284 · Answer 4 · 2026-04-16 15:08:50

284

Views

Prove that the centroid of $\triangle ABC$ lies on the circle $C_1$

Published on 16 Apr 2026 - 15:08

score 474 · Answer 5 · 2026-04-14 07:17:21

474

Views

Show that a convex polygon is contained within the largest circle determined by three consecutive vertices

Published on 14 Apr 2026 - 7:17

score 905 · Answer 6 · 2026-04-13 02:03:28

905

Views

Are each of the following statements for chords, radiuses, diameters and arcs of a circle true?

Published on 13 Apr 2026 - 2:03

score 246 · Answer 7 · 2026-04-24 01:11:18

246

Views

What are the coordinates for the center of the second circle? (Full question in body)

Published on 24 Apr 2026 - 1:11

score 4.8k · Answer 8 · 2026-05-10 16:00:13

4.8k

Views

Project a point within a circle onto its edge.

Published on 10 May 2026 - 16:00

score 1.7k · Answer 9 · 2026-03-28 02:21:23

1.7k

Views

How many different ways can a circle intersect a triangle N ways?

Published on 28 Mar 2026 - 2:21

score 2.5k · Answer 10 · 2026-04-09 23:17:36

2.5k

Views

Finding equation of a circle given three non - collinear points

Published on 09 Apr 2026 - 23:17

score 532 · Answer 11 · 2026-03-29 04:48:15

532

Views

Intersection of two circles in projective space

Published on 29 Mar 2026 - 4:48

score 1.6k · Answer 12 · 2026-04-15 14:43:19

1.6k

Views

Area of the shaded region of a circle

Published on 15 Apr 2026 - 14:43

score 103 · Answer 13 · 2026-04-14 23:43:39

103

Views

Proving that $P$ and $Q$ are symmetric in the line $XY$.

Published on 14 Apr 2026 - 23:43

score 188 · Answer 14 · 2026-05-05 19:43:20

188

Views

Is the closure of the set of all irrational rotation maps on $S^1$ dense in $Homeo(S^1)$?

Published on 05 May 2026 - 19:43

score 623 · Answer 15 · 2026-04-15 04:45:00

623

Views

Prove that the center of a circle within a constructed triangles lies on the angle bisector

Published on 15 Apr 2026 - 4:45

List Question

All triangles that have the same orthocenter and circumcircle have the same nine-point circle

How can I find the radius R of a circle big enough to have n circles of different radii centered on its circumference, separated by an angle theta?

Circle inversion of a circle

Prove that the centroid of $\triangle ABC$ lies on the circle $C_1$

Show that a convex polygon is contained within the largest circle determined by three consecutive vertices

Are each of the following statements for chords, radiuses, diameters and arcs of a circle true?

What are the coordinates for the center of the second circle? (Full question in body)

Project a point within a circle onto its edge.

How many different ways can a circle intersect a triangle N ways?

Finding equation of a circle given three non - collinear points

Intersection of two circles in projective space

Area of the shaded region of a circle

Proving that $P$ and $Q$ are symmetric in the line $XY$.

Is the closure of the set of all irrational rotation maps on $S^1$ dense in $Homeo(S^1)$?

Prove that the center of a circle within a constructed triangles lies on the angle bisector

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