 |
Home > Shapes
Puzzles involving various geometric shapes, in a flat plane and in three-dimensional space.
|
A quadrilateral is a _________ if and only if the sum of the squares of its sides is equal to the sum of the squares of its diagonals. Prove it.
|
Page 2 of 30 |
<< prev
next >>
|
 Rectangle Evasion 2 | Posted on 2016-10-23 by Brian Smith (No Solution Yet, 0 Comments)Six Hexominos surrounding a Tetromino | Posted on 2016-10-19 by Brian Smith (No Solution Yet, 0 Comments) Tile a Rectangle | Posted on 2016-10-15 by Brian Smith (No Solution Yet, 0 Comments) U-Hexominos and Squares | Posted on 2016-10-12 by Brian Smith (No Solution Yet, 0 Comments) No Fault Coverage 2 | Posted on 2016-10-10 by Brian Smith (No Solution Yet, 1 Comments) Nine Hexominos in a Square | Posted on 2016-10-07 by Brian Smith (No Solution Yet, 2 Comments) Covering a Square with Hexominos | Posted on 2016-10-06 by Brian Smith (No Solution Yet, 1 Comments) Wrapping a Regular Hexagon | Posted on 2016-10-05 by K Sengupta (No Solution Yet, 1 Comments) Rectangle Evasion | Posted on 2016-09-29 by Brian Smith (No Solution Yet, 1 Comments) Unit Cube Paint Undertaking | Posted on 2016-09-28 by K Sengupta (No Solution Yet, 6 Comments) Immobile Hexominos | Posted on 2016-09-25 by Brian Smith (No Solution Yet, 1 Comments) Eight Hexominos plus a Tetromino | Posted on 2016-09-17 by Brian Smith (No Solution Yet, 2 Comments) Quadrilateral and Radius Query | Posted on 2016-09-15 by K Sengupta (No Solution Yet, 1 Comments) Lattice Parallelogram and Point Poser | Posted on 2016-09-14 by K Sengupta (No Solution Yet, 0 Comments) Sparse Packing a Zig-Zag | Posted on 2016-09-11 by Brian Smith (No Solution Yet, 1 Comments) |
|
Please log in:
Forums (0)
Newest Problems
Random Problem
FAQ |
About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
|
