Final Answer:
The triangles are similar based on the Side-Side-Side c) (SSS) criterion, as the corresponding sides are in proportion.
Step-by-step explanation:
The given triangles can be determined as similar using the Side-Side-Side (SSS) similarity criterion. In the given set of triangles, the corresponding sides are proportional. Let's denote the corresponding sides of the triangles as
and
respectively, where
is the side opposite the angle
is the side opposite the angle
, and
is the side opposite the angle
.
Now, comparing the corresponding sides:
1.

2.

3.

Since all corresponding sides are in proportion, we can conclude that the triangles are similar by the SSS criterion.
In mathematical terms:
![\[ (a_1)/(a_2) = (10)/(12) = (5)/(6), \quad (b_1)/(b_2) = (12)/(15) = (4)/(5), \quad (c_1)/(c_2) = (15)/(12) = (5)/(4) \]](https://img.qammunity.org/2024/formulas/mathematics/high-school/6d6laco5vh6yes02nll7yuzbxdyb7dwxem.png)
The ratios are consistent, confirming the similarity of the triangles. Therefore, the correct choice is c) SSS, indicating that the triangles are similar based on the Side-Side-Side criterion.