Question

this parallelogram is a scaled copy. it was scaled by a factor of $\frac{1}{2}$. suppose you want to scale it back to its original size. what scale factor should you use? to scale back to the original, use a scale factor of

Explanation:

Step1: Recall scale - factor concept

To reverse a scale - down, we use the reciprocal of the original scale factor.

Step2: Find the reciprocal

The original scale factor is $\frac{1}{2}$. The reciprocal of $\frac{1}{2}$ is $\frac{2}{1}=2$.

Answer:

2