Question

Construct triangle ABC, denote I as the incenter, A' as the mid point of the arc BC of the circumcircle. Show that A'B = A'C = A'I

score 504 · Answer 1 · 2026-04-15 23:45:10

504

Views

Construct triangle ABC, denote I as the incenter, A' as the mid point of the arc BC of the circumcircle. Show that A'B = A'C = A'I

Published on 15 Apr 2026 - 23:45

score 114 · Answer 2 · 2026-04-14 07:59:12

114

Views

Proving half turns

Published on 14 Apr 2026 - 7:59

score 39 · Answer 3 · 2026-04-12 16:11:42

39

Views

Geometry Transformations proof

Published on 12 Apr 2026 - 16:11

score 118 · Answer 4 · 2026-04-14 12:13:23

118

Views

Is it correct to say that NURBS are not part of Euclidean Geometry?

Published on 14 Apr 2026 - 12:13

score 135 · Answer 5 · 2026-04-13 05:22:50

135

Views

Ramer-Peucker-Douglas algorithm in polar coordinates

Published on 13 Apr 2026 - 5:22

score 265 · Answer 6 · 2026-04-15 02:40:21

265

Views

Tangent Points to Ellipse

Published on 15 Apr 2026 - 2:40

score 655 · Answer 7 · 2026-04-12 09:35:09

655

Views

Tangent Points for Common Tangent to Two Ellipses

Published on 12 Apr 2026 - 9:35

score 583 · Answer 8 · 2026-04-16 09:45:44

583

Views

4 circles tangent to each other

Published on 16 Apr 2026 - 9:45

score 407 · Answer 9 · 2026-04-12 19:22:22

407

Views

Find angle in isosceles triangle where median yields another isosceles triangle

Published on 12 Apr 2026 - 19:22

score 415 · Answer 10 · 2026-04-15 23:48:47

415

Views

Given two circles in space, how to compute their relative position

Published on 15 Apr 2026 - 23:48

score 231 · Answer 11 · 2026-04-16 07:05:44

231

Views

Maximum distance achieved by a rotation

Published on 16 Apr 2026 - 7:05

score 1.6k · Answer 12 · 2026-04-14 16:06:50

1.6k

Views

Canadian Mathematical Olympiad 2007 Question 5

Published on 14 Apr 2026 - 16:06

score 239 · Answer 13 · 2026-04-14 11:17:49

239

Views

Let H be the orthocenter of the acute triangle ABC. Extend the altitude AD until it intersects the circumcircle of triangle ABC at F. Show that BH=BF

Published on 14 Apr 2026 - 11:17

score 437 · Answer 14 · 2026-04-13 11:30:04

437

Views

A question involving medians of triangle.

Published on 13 Apr 2026 - 11:30

score 230 · Answer 15 · 2026-04-13 11:23:11

230

Views

Solve for angle $x$ in a scalene triangle

Published on 13 Apr 2026 - 11:23

List Question

Construct triangle ABC, denote I as the incenter, A' as the mid point of the arc BC of the circumcircle. Show that A'B = A'C = A'I

Proving half turns

Geometry Transformations proof

Is it correct to say that NURBS are not part of Euclidean Geometry?

Ramer-Peucker-Douglas algorithm in polar coordinates

Tangent Points to Ellipse

Tangent Points for Common Tangent to Two Ellipses

4 circles tangent to each other

Find angle in isosceles triangle where median yields another isosceles triangle

Given two circles in space, how to compute their relative position

Maximum distance achieved by a rotation

Canadian Mathematical Olympiad 2007 Question 5

Let H be the orthocenter of the acute triangle ABC. Extend the altitude AD until it intersects the circumcircle of triangle ABC at F. Show that BH=BF

A question involving medians of triangle.

Solve for angle $x$ in a scalene triangle

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