SAS. The line that the two triangles share is classified as a side for both triangles. Therefor making it SAS.
28%
Explanation:
Use this formula:
New number - original number divided by original number x 100
In this case:
15,360 - 12,000 ÷ 12,000 x 100
= 28
Final answer: 28%
A brainliest would be nice!
-SpaceMarsh