Let’s find lines of Symmetry!
What are lines of symmetry?
Goal:
Goal:
Think About It!
Goal: Identify lines of symmetry
This heart is partitioned into halves. Both of its sides are the same size! The dotted line that divides this heart in half is called a line of symmetry. A line of symmetry is a line that divides an object into equal parts.
We know this is a line of symmetry because the heart can be folded along the line and both sides are the same. We can say, “This shape is symmetrical!”
Which shape has a line of symmetry?
This is not a line of symmetry because it does not partition the square in two equal parts.
This is a line of symmetry because it partitions the triangle into two equal parts!
Lines of Symmetry
Which shape has a line symmetry?
Which shape is partitioned into two equal parts?
Which shape is partitioned into two equal parts?
Which shape is partitioned into two equal parts?
Which shape has a line of symmetry?
A line of symmetry is a line that divides an object into equal parts.
A line of symmetry is a line that divides an object into equal parts.
A line of symmetry is a line that divides an object into equal parts.
Which shape has a line of symmetry?
You can check to see if a line is a line of symmetry by folding the shape along the line. If both sides are the same, the line is a line of symmetry!
You can check to see if a line is a line of symmetry by folding the shape along the line. If both sides are the same, the line is a line of symmetry!
You can check to see if a line is a line of symmetry by folding the shape along the line. If both sides are the same, the line is a line of symmetry!
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