Question

the triangles are similar by... asa sas~ sss~ aa~

Explanation:

Step1: Check the ratios of the corresponding sides

Calculate the ratios: $\frac{12}{6} = 2$, $\frac{8}{4}=2$, $\frac{6}{3}=2$.

Step2: Determine the similarity criterion

Since the ratios of all three pairs of corresponding sides are equal, the triangles are similar by the SSS (Side - Side - Side) similarity criterion.

Answer:

SSS~