They are called regular polygons
3
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it is a relationship between the sides with respect to size, In maths it is a relationship between four numbers or quantities in which the ratio of the first pair equals the ratio of the second pair
An equilateral shape for example is a regular polygon whose sides are all equal in lengths.
Angle Classifications:Obtuse (1 angle >90 degrees)Acute (all 3 angles
all side lengths are equal. has 3 sides
An infinite number. A polygon with any number of sides can be equilateral (ie have sides of equal length).
They must not all be equal.
All regular polygons are equiangular because their side lengths are equal.
Only a regular octagon will have 8 equal sides.
the shape is a regular shape if it has all the same angles and side lengths.