9000121809

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Level: 
Project ID: 
9000121809
Accepted: 
1
Clonable: 
0
Easy: 
0
The number of diagonals in a regular polygon is \(2.5\)-times bigger than the number of the sides of this polygon. In the figure the cut of a regular polygon with unspecified number of vertices is shown. The red angle is the central angle of the polygon. Find the central angle of the polygon.
\(45^{\circ }\)
\(50^{\circ }\)
\(135^{\circ }\)
\(35^{\circ }\)