Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with plane-geometry
Search options not deleted
user 265714
Plane Geometry is about flat shapes like lines, circles and triangles , shapes that can be drawn on a piece of paper
5
votes
1
answer
526
views
Twin circles in a quadrilateral
The circumcenters of the four triangles of a complete quadrilateral along with the two points of completion form two congruent circles (in black).
Surely this must've been done before - what's the fo …
CommunityBot
- 1
1
vote
0
answers
158
views
A certain circle formed by perpendiculars
If six points are chosen, two points on each side of a triangle, such that they have the same ratio of distances to vertices, then the perpendicular lines through those points meet at six concyclic p …
- 63.9k
0
votes
0
answers
77
views
Coordinates of the centers of the insphere and circumsphere
Suppose we are working in $\mathbb{R}^3$ space and we have four non-coplanar and non-collinear points, $(x_a, y_a, z_a)$, $(x_b, y_b, z_b)$, $(x_c,y_c, z_c)$, and $(x_d, y_d, z_d)$. How does one deter …
CommunityBot
- 1
0
votes
2
answers
172
views
Radical line of two ellipses
The equation of an ellipse with focal points $(a_1,b_1)$ and $(a_2,b_2)$ which passes through the point $(a_3,b_3)$ is given by the equation
$$\begin{gathered}
\sqrt{ (x-a_1)^2+(y-b_1)^2 } + \sqrt{ (x …
- 680