Video

Identifying scale factor in drawings (Full video)

Khan Academy

Supporting grades: 7

Description: Identify the scale factor used to create a scale copy. For example, this side right over here would correspond to this side right over here on figure b. If figure b truly is a scaled copy, then every side should be scaled up by a factor of three. We're being told that these are scaled copies but we can see that this is the case.

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