Exploring Lines of Symmetry in Polygons and Nature

What is required to find lines of symmetry in the activity?

• A calculator and a ruler

• Isometric paper and a straightedge

• A protractor and squared paper

• Graph paper and a compass

How many lines of symmetry does an equilateral triangle have?

• 4

• 2

• 1

• 3

What is the shape of the paper fold that indicates a line of symmetry?

• Horizontal

• Any direction as long as it creates a mirror image

• Vertical

• Diagonal

Which polygon does NOT have lines of symmetry equal to its sides?

• Parallelogram

• Square

• Equilateral Triangle

• Hexagon

How many lines of symmetry does a square have?

• 8

• 4

• 2

• 6

What defines a regular polygon?

• Only angles are equal

• All sides and angles are equal

• No sides or angles are equal

• Only sides are equal

What characteristic do regular polygons share with their lines of symmetry?

• There is no relationship between the number of sides and lines of symmetry

• The number of lines of symmetry is double the number of sides

• The number of lines of symmetry is equal to the number of sides

• The number of lines of symmetry is half the number of sides

How many lines of symmetry does a circle have?

• 2

• Infinite

• 4

• 1

Which figure has only one line of symmetry?

• Trapezoid

• Square

• Equilateral Triangle

• Circle

What is the term for a line that goes through the center of a circle and is also a line of symmetry?

• Radius

• Diameter

• Circumference

• Chord