Question

find the scale factor that takes the original triangle to the scaled copy. now, find the scale factor. original triangle scaled copy base 8 4 height 12 6 original copy the scale factor is

Explanation:

Step1: Recall scale - factor formula

The scale factor $k$ from the original to the scaled - copy is given by $k=\frac{\text{dimension of scaled copy}}{\text{dimension of original}}$.

Step2: Choose a dimension

We can use either the base or the height. Let's use the base. The base of the original triangle is $b_{1} = 8$ and the base of the scaled - copy is $b_{2}=4$.

Step3: Calculate the scale factor

$k=\frac{b_{2}}{b_{1}}=\frac{4}{8}=\frac{1}{2}$.

Answer:

$\frac{1}{2}$