Exploring Lines of Symmetry

If a shape can be folded along a line into matching parts, what is this line called?

• Line of reflection

• Line of symmetry

• Line of congruence

• Line of parallelism

Tags

CCSS.4.G.A.3

The dotted line ​ (a)  

• is not a line of symmetry.
• is a line of symmetry.
• is a vertical line.

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

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• 
• 
• 

Tags

CCSS.4.G.A.3

Which line is not a line of symmetry?

• W

• X

• Y

• Z

Tags

CCSS.4.G.A.3

How many lines of symmetry does a rectangle have?

• 1

• 2

• 3

• 4

Tags

CCSS.4.G.A.3

Select TWO figures that have a vertical and horizontal line of symmetry.

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• 
• 
• 

Which figure has only ONE line of symmetry?

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• 
• 
• 

Tags

CCSS.4.G.A.3

Identify the line of symmetry in the letter "H".

• Horizontal

• Vertical

• Both horizontal and vertical

• Neither

Tags

CCSS.4.G.A.3

Categorize the shapes by the type of symmetry the have.

Groups:

(a) Horizontal

,

(b) Diagonal

,

(c) Vertical

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• 
• 
• 
• 

Label the image with the correct type of line it represents.

a

b

c

Vertical

Horizontal

Diagonal