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Mathematics and geometry education edition of junior one.
1, the obtained figure is pentagonal, and the sum of internal angles is 180× (5-2) = 540.

2. Sum of internal angles of n-polygon: 180× (n-2)

2030/ 180 = 1 1 50.

1 1+2= 13

The sum of internal angles of 13 polygon:180× (13-2) =1980 is less than 2030.

The sum of the interior angles of 14 polygon is:180× (14-2) = 2160, and the rest interior angles are: 2 160-2030 = 130.

The degree of this inner angle is 130, which is a polygon of 14.

3. Each team plays 32- 1=3 1 game, and every two teams play 1 game.

A * * * will have 3 1×32÷2=496 games.