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Aspect ratio HTML5

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Summary

The width of an image divided by its height is known as the aspect ratio of the image.
the aspect ratio of a traditional TV screen is 4:3 but some high definition movies prefer the 16:9 standard.

Click and drag the top right corner of the image.

Click on "ratio" or "scale" to show the fraction.

Learning goals

  • To introduce the mathematical notion of percentage.
  • To compare the TV and film aspect ratios.