Answer:
5
Step-by-step explanation:
The scale factor is 5. Answered by Gauthmath
The length and the width of rectangle a are expanded 5 times respectively.
The scale factor is a measure for similar figures, who look the same but have different scales or measures. Suppose, two circle looks similar but they could have varying radii. The scale factor states the scale by which a figure is bigger or smaller than the original figure.
According to the question
Rectangle a is dilated to form rectangle b.
By division operation, the ratio
[tex]\frac{20}{4} =\frac{30}{6} =5[/tex]
The length and the width of rectangle a are expanded 5 times respectively.
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