The new length of the enlarged figure will be 18 cm if the original length is 4.5 cm.
What is the scale factor?
A scale factor is defined as a number that scales, or multiplies, the original figure by some quantity.
We have the equation for the scale factor as;
Y = Cx
Here, C is a scale factor for x. It is called the constant of proportionality.
The length of the enlarged figure will be
Y = 4.5 x 4
Y = 18 cm
Therefore, the new length of the enlarged figure will be 18 cm.
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