Geometry
posted by Astrid .
Write these definitions using the classify and differentiate method to fill in the blanks:
a. An octagon is __________ that ___________.
b. A concave polygon is __________ that ___________.
c. A 20gon, also called an icosagon, is __________ that ___________.
d. An equilateral polygon is __________ that ___________.

I'll be glad to check your answers.

i don't know i need help i don't understand

What the hell is the answers.?!

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An octagon in a shape with eight sides.
A concave polygon is a shape with one or more diagonals on the outside.
A 20gon, also called an icosagon, is a polygon that has 20 sides.
An equilateral polygon is a polygon that has all equal sides. 
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