Answer:
- A) the SSS similarity theorem
Step-by-step explanation:
Given triangles with all sides known.
Find the ratio of corresponding sides to determine if they are similar:
AC = 6 + 3 = 9
Ratio: 9/3 = 3
BC = 8 + 4 = 12
Ratio: 12/4 = 3
AB = 15
Ratio: 15/5 = 3
All three sides have same ratio. It means the triangles are similar by SSS similarity.
Correct choice is A.
