Question

1. what is the scale factor of the dilation below? scale factor

Explanation:

Step1: Identify corresponding side - lengths

Let's assume the vertical side of the smaller triangle is 2 units and the vertical side of the larger triangle is 4 units.

Step2: Calculate scale - factor

The scale factor $k$ of a dilation is given by the ratio of the length of a side of the dilated figure to the length of the corresponding side of the original figure. So, $k=\frac{\text{length of side in dilated figure}}{\text{length of side in original figure}}=\frac{4}{2} = 2$.

Answer:

2