80:(8+2)a. 12b. 11c. 1
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<h2>Explanation:</h2><h2></h2>
When we have relationships between two variables and their ratios are equivalent, we call this as proportional relationship. A scale drawing is a model that has been reduced or enlarged from its original size. Suppose you have a horse that measures 1,5m high by 2m long and want to draw a reduced model by a scale factor of 1:10, then your drawing will measure:
So the components are:
- Measurements of the original object
- Measurements of the drawing
- Scale factor