2.4 –symmetry. line of symmetry: a line that folds a shape in half that is a mirror image
TRANSCRIPT
![Page 1: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/1.jpg)
2.4 –Symmetry
![Page 2: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/2.jpg)
Line of Symmetry:
A line that folds a shape in half that is a mirror image
![Page 3: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/3.jpg)
1. For each image below, reflect the shape over the line.
![Page 4: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/4.jpg)
![Page 5: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/5.jpg)
![Page 6: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/6.jpg)
2. Determine if the shapes have line symmetry. If it does, draw in all possible lines of symmetry.
![Page 7: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/7.jpg)
one
![Page 8: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/8.jpg)
none
![Page 9: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/9.jpg)
one
![Page 10: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/10.jpg)
two
![Page 11: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/11.jpg)
Rotational Symmetry:
A degree that turns a shape onto itself
360° # matches
Degree =
![Page 12: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/12.jpg)
3. Determine if the shape has rotational symmetry. If it does, find the degree of rotational symmetry.
![Page 13: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/13.jpg)
90°,180°, 270°, 360°
![Page 14: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/14.jpg)
b.
120°, 240°, 360°
![Page 15: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/15.jpg)
60°,120°, 180°, 240°, 300°, 360°
![Page 16: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/16.jpg)
none
![Page 17: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/17.jpg)
4. Below are the most common geometric shapes you will be learning throughout geometry. Identify if the shapes have reflection symmetry, rotation symmetry, both, or none. If it has reflection symmetry, state how many lines of symmetry it has. If it has rotation symmetry, state the degree of rotation.
![Page 18: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/18.jpg)
6 lines60°,120°, 180°,
240°,300°, 360°
1 line
No rotation
![Page 19: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/19.jpg)
2 lines
180°,
No line
360° No rotation
![Page 20: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/20.jpg)
No line 3 lines
120°, 240°,360°
No rotation
![Page 21: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/21.jpg)
4 lines
90°, 180°,360°270°,
1 line
No rotation
![Page 22: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/22.jpg)
infinite 2 lines
180°,360°infinite
![Page 23: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/23.jpg)
No line 1 line
No rotationNo rotation
![Page 24: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/24.jpg)
No line 1 line
No rotationNo rotation
![Page 25: 2.4 –Symmetry. Line of Symmetry: A line that folds a shape in half that is a mirror image](https://reader036.vdocuments.us/reader036/viewer/2022081516/5697bfe11a28abf838cb3b2d/html5/thumbnails/25.jpg)
no line
180°,5 lines
72°, 144°,288°,
216°,360°
360°