Lesson 5

1. Lesson 5

1.5. Lesson 5 Summary

Mathematics 20-2 M6 Lesson 5

Module 6: Proportional Reasoning

 
This illustration is of a 3-D model of the inside of a house. Five rolls of house blueprints are placed beside the model.

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Lesson 5 Summary
 

Sometimes, a design needs to be created in larger-than-life sizes. Or a large object may need to be viewed in a more manageable size. Designers use scale to produce accurate and proportional representations of shapes and objects.

 

By relating the diagram measurement to the actual measurement, scale can be determined. Since all items on a scale diagram are drawn to the same scale, you can determine the real dimensions of the object using either the scale or a proportion if you know the scale factor.