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what is the measure of the angel of a pentagon?
The Pentagon does not have a good angel but a bad angel.
A regular pentagon (one with equal sides and angles) has 5 angles of the same size
A triangle (3-gon)has 180 degrees three equal of 60
A square (4-gon) has 360 4 equal of 90
For each additional side add 180 degrees.
5-gon(pentagon)
360+180=
540
540/5=