Natural numbers + polygon - practice problems
Number of problems found: 6
- Each with each
Five pupils from 3A class played table tennis. How many matches did they play with each other? - Competition 33041
The long-term volleyball tournament is played on a one-on-one basis. So far, 11 teams have entered the competition. How many matches will be lost when two teams unsubscribe? - Other's 31461
There are 13 guests at each other's party. How many clicks will you hear? - Ten persons
Ten persons, each person, make a hand to each person. How many hands were given? - Sum of inner angles
Prove that the sum of all inner angles of any convex n-angle equals (n-2).180 degrees. - Octahedron - sum
On each wall of a regular octahedron is written one of the numbers 1, 2, 3, 4, 5, 6, 7, and 8, wherein on different sides are different numbers. John makes the sum of the numbers written on three adjacent walls for each wall. Thus got eight sums, which al
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