4.) What is the name of a polygon, if the sum of its interior angle is 1980°?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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4.) What is the name of a polygon, if the sum of its interior angle is 1980°?
5.) How many diagonals can you draw in a tetragon?
Transcribed Image Text:4.) What is the name of a polygon, if the sum of its interior angle is 1980°? 5.) How many diagonals can you draw in a tetragon?
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