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Geometry (all content)

Course: Geometry (all content)>Unit 10

Lesson 9: Old transformations videos

Performing translations (old)

An older video where Sal uses the interactive widget to find the image of a rectangle under a translation. Created by Sal Khan.

Want to join the conversation?

• what is the difference between translation and reflection?
• Translation: moving the origin of a polygon, but retaining the direction of each axis.

Reflection: a polygon's "mirror image" over a specified line.

=D
• can polygons be circular
• No way... a polygon is defined as what? How about a circle? You can bend into a polygon a circular wire; but geometrically, the two concepts are as different as night and day! :-)
• Do polygons have curves?
• I want to practice the skills and watch the videos only when i need help. Where are the exercises?
• How would you define a regular polygon?
• Regular Polygon :

If all angles are equal and all sides are equal, then it is a regular polygon (otherwise it is "irregular").
• i couldnt load the video
• Try using Chrome if you were using Internet Explorer.
• Is a polygon a four sided shape
• A polygon is any closed shape with any number of straight, equal, sides. A quadrilateral has 4 sides.
Hope this helps!
• How would one describe a translation without a coordinate graph given, or coordinate points given for the vector? Also, would you use compass directions to describe the translation?
• Do translations have to be on the coordinate plane?