Answer:
The triangle ABC is dilated by 3 units.
Explanation:
We know that,
Dilation is a transformation that changes the size of the figure by any scale factor.
Now, as we can see that the size of the larger triangle is 3 times the size of the smaller triangle.
Therefore, we can say that the figure ABC is dilated by a scale factor of 3 to form figure A'B'C'.
Hence, the triangle ABC is dilated by 3 units to make A'B'C'.