Question

Circle geometry. Prove quadrilateral diagonals are perpendicular.

score 82 · Answer 1 · 2026-04-07 21:12:03

Circle geometry. Prove quadrilateral diagonals are perpendicular.

Published on 07 Apr 2026 - 21:12

score 158 · Answer 2 · 2023-04-03 13:28:56

In a triangle, when any two of the altitude, median, perpendicular bisector, and angle bisector from a vertex coincide, the triangle is isosceles

score 110 · Answer 3 · 2023-04-04 02:00:57

110

Views

Finding the triangle vertices given the feet of perpendiculars

Published on 04 Apr 2023 - 2:00

score 29 · Answer 4 · 2023-04-05 11:47:44

29

Views

Isosceles triangle with concrete angles

Published on 05 Apr 2023 - 11:47

score 163 · Answer 5 · 2026-03-28 04:40:50

163

Views

Why do equilateral triangles relate to cubics

Published on 28 Mar 2026 - 4:40

score 348 · Answer 6 · 2023-04-05 19:29:56

348

Views

Remarkable property of equilateral triangles

Published on 05 Apr 2023 - 19:29

score 60 · Answer 7 · 2026-04-02 23:38:17

60

Views

Find tetrahedron triangles' angles from dihedral angles.

Published on 02 Apr 2026 - 23:38

score 74 · Answer 8 · 2023-04-09 19:25:59

74

Views

Why can't I use the area to solve for CZ?

Published on 09 Apr 2023 - 19:25

score 27 · Answer 9 · 2023-04-10 00:50:38

27

Views

Finding a mid-angle line between many points

Published on 10 Apr 2023 - 0:50

score 73 · Answer 10 · 2023-04-10 13:40:31

73

Views

How to prove that given polygonal chain of line segments is greater than a given straight line?

Published on 10 Apr 2023 - 13:40

score 109 · Answer 11 · 2023-04-13 13:30:33

109

Views

Geometry problem, triangle, angles, exercise from 2022 local competition

Published on 13 Apr 2023 - 13:30

score 39 · Answer 12 · 2026-04-08 13:42:06

39

Views

Solution explanation for finding the value of Angle $\theta$.

Published on 08 Apr 2026 - 13:42

score 152 · Answer 13 · 2026-04-03 21:04:06

152

Views

A right angle relates to orthocenter and circumcenter

Published on 03 Apr 2026 - 21:04

score 51 · Answer 14 · 2026-04-01 20:00:03

51

Views

Upper bounding third side of a triangle.

Published on 01 Apr 2026 - 20:00

score 299 · Answer 15 · 2023-04-15 11:22:06

299

Views

is it possible that two right triangle have hypotenuse with the same length but the sum of other two side is not the same

Published on 15 Apr 2023 - 11:22

List Question

Circle geometry. Prove quadrilateral diagonals are perpendicular.

In a triangle, when any two of the altitude, median, perpendicular bisector, and angle bisector from a vertex coincide, the triangle is isosceles

Finding the triangle vertices given the feet of perpendiculars

Isosceles triangle with concrete angles

Why do equilateral triangles relate to cubics

Remarkable property of equilateral triangles

Find tetrahedron triangles' angles from dihedral angles.

Why can't I use the area to solve for CZ?

Finding a mid-angle line between many points

How to prove that given polygonal chain of line segments is greater than a given straight line?

Geometry problem, triangle, angles, exercise from 2022 local competition

Solution explanation for finding the value of Angle $\theta$.

A right angle relates to orthocenter and circumcenter

Upper bounding third side of a triangle.

is it possible that two right triangle have hypotenuse with the same length but the sum of other two side is not the same

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