Video

Identifying values in scale copies (Full video)

Khan Academy

Description: Sal identifies missing side lengths in scale drawings And so, one way to think about it is the ratio between X and five should be one to two and a half because that's the scale that goes from Figure A to Figure B. So, the ratio, let me write this out. One to two and a half, and that one is hard to read, let me make it a deeper blue, there you go.

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