Find the perimeter of Triangle HTO if triangle ABM is similar to Triangle HTO hELP PLEASE I WILL MARK YOU BRAINLIEST :)

Similar means the sides are the same proportion in both triangles. For example, one side is 10 in the first triangle and the same side is 5 in the second triangle. This means the scale factor is one half (1/2). So the other sides will be 6 (half of 12) and 4 (half of 8).
6+5+4 = 15
:)))

Where’s the picture or data?