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Earn +20 ptsQ: How many diagonals are in a 20 gon?
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Continue Learning about Geometry
How many diagonals are in a 24-gon?
252 diagonals
How many diagonals in 25-gon?
There are 275 diagonals in a 25 sided polygon
How many diagonals in a 15-gon?
0.5*(152-45) = 90 diagonals
How many diagonals in a regular 46-gon?
many triangles does a regular 46-gon have
How many diagonals can you draw in a 21-gon?
189
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