To determine the magnitude of the dilation from triangle ABC to triangle A'B'C', we need to know the coordinates of the vertices of both triangles. The magnitude of dilation \( k \) can be found using the formula:
\[ k = \frac{\text{Distance from the origin to a point in triangle A'B'C'}}{\text{Distance from the origin to the corresponding point in triangle ABC}} \]
If you provide the coordinates of the vertices of triangles ABC and A'B'C', I can help you calculate the magnitude of the dilation. Please share the coordinates for further assistance!