

Line of Symmetry Lesson
Presentation
•
Mathematics
•
3rd Grade - University
•
Hard
Joseph Anderson
FREE Resource
6 Slides • 0 Questions
1
lines of symmetry

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Lines of symmetry
symmetry is when two or more parts are identical after a flip .
The simplest form of symmetry is reflection .
A 2D shape is symmetrical .
A line can be drawn through it so that either side of the line looks EXACTLY the same .
the line is called a line of symmetry .
3
Look at this picture
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Lines of Symmetry of a Square
In a square, there are four lines of symmetry, each of which divides it into two identical parts. The symmetry lines of a square are both its diagonals and the lines joining the midpoints of its opposite sides
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Lines of Symmetry of a Rectangle
A rectangle has 2 lines of symmetry. The lines of symmetry in a rectangle cut its opposite sides into equal parts.
6
Complete the following
lines of symmetry

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