Answer: 9, 13.5 and 18
Explanation:
To find the dimensions of the new triangle, we can simply multiply each side of the original triangle by the scale factor of 1.5.6 x 1.5 = 9, 9 x 1.5 = 13.5, 12 x 1.5 = 18
The dimensions of the new triangle are 9, 13.5, and 18.