Exploring Lines of Symmetry

What is a line of symmetry?

• A line that divides a shape into two identical parts

• A line that goes around a shape

• A line that measures the length of a shape

• A line that connects two corners

Which of the following shapes has only one line of symmetry?

• Rectangle

• Equilateral triangle

• Square

• Heart shape

What type of symmetry does a butterfly have?

• Rotational symmetry

• Reflectional symmetry

• Translational symmetry

• No symmetry

How many lines of symmetry does a regular hexagon have?

• 2

• 4

• 6

• 8

Which of these objects from nature is most likely to have radial symmetry?

• Leaf

• Starfish

• Cat

• Tree trunk

If you fold a square along its diagonal, what do you notice about the two parts?

• They are not the same size

• They are mirror images of each other

• They form a rectangle

• They overlap only a little

Look at the word "MOM." How many lines of symmetry does it have?

• 0

• 1

• 2

• 3

Which shape below does NOT have any lines of symmetry?

• Circle

• Isosceles triangle

• Scalene triangle

• Square

If you draw a vertical line through the middle of a rectangle, what happens?

• The two sides are not equal

• The two sides are mirror images

• The rectangle turns into a triangle

• The rectangle disappears

Which of these real-world objects is most likely to have a line of symmetry?

• A spoon

• A soccer ball

• A pencil

• A slice of pizza