Rotational Symmetry of Polygons
Remember: Regular Polygons are polygons with EQUAL SIDES AND ANGLES.
Equilateral Triangle
Number of Rotational Symmetries
Does the EQUILATERAL TRIANGLE rotate onto itself when rotated at 90°?
List Rotational Symmetries
Choose the list that includes all Rotational Symmetries for an EQUILATERAL TRIANGLE. (Angles at which it lines up with the original triangle)
Square
Number of Rotational Symmetries
Does the SQUARE have 90° rotational symmetry?
List Rotational Symmetries
Choose the list that includes all Rotational Symmetries for a SQUARE. (Angles at which it lines up with the original square)
Number of Rotational Symmetries
Does a REGULAR PENTAGON have 90° rotational symmetry?
List Rotational Symmetries
Choose the list that includes all Rotational Symmetries for a REGULAR PENTAGON. (Angles at which it lines up with the original pentagon)
Number of Rotational Symmetries
Does a REGULAR Hexagon have 90° rotational symmetry?
List Rotational Symmetries
Choose the list that includes all Rotational Symmetries for a REGULAR Hexagon. (Angles at which it lines up with the original pentagon)
Rotational symmetry of Non-regular polygons
Rectangle (non-regular polygon)
Number of Rotational Symmetries
How many times did the rectangle land onto itself?
Number of Rotational Symmetries
How many times did the trapezoid land onto itself?
Number of Rotational Symmetries
Does a REGULAR OCTAGON have 90° rotational symmetry?
List Rotational Symmetries
Choose the list that includes all Rotational Symmetries for a Regular Octagon.
How many sides do the shapes with 90 degree rotational symmetry have? Do you think there's a pattern?