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- Sat Mar 24, 2018 9:59 pm
- Forum: Higher Secondary Level
- Topic: Help!!!
- Replies: 0
- Views: 5402
Help!!!
The base of a pyramid is a nine-sided convex polygon. Every diagonal of the polygon, and each pyramid's lateral edge is black or white. (The sides of the polygon at the base are not colored.) Demonstrate that there is three segments that have been colored with the same color and form a triangle.
- Sat Mar 24, 2018 9:25 pm
- Forum: Junior: Solved
- Topic: An interesting problem
- Replies: 0
- Views: 10179
An interesting problem
The base of a pyramid is a nine-sided convex polygon. Every diagonal of the polygon, and each pyramid's lateral edge is black or white. (The sides of the polygon at the base are not colored.) Demonstrate that there is three segments that have been colored with the same color and form a triangle.