Answer:
60 cm, 60 cm, 32 cm, 32 cm
Step-by-step explanation:
Multiply each length by the scale factor.
15 cm * 4 = 60 cm
8 cm * 4 = 32 cm
The dilated sides AB and CD will have a length of 60 cm.
The dilated sides AC and BD will have a length of 32 cm.