Final answer:
The nominal size of 1 1/2 x 1 1/2 lumber is 1 1/2 inches by 1 1/2 inches. The distance of 16.0 inches is equal to 40.64 centimeters.
Step-by-step explanation:
The nominal size of 1 1/2 x 1 1/2 lumber refers to the rough size of the lumber before it is planed smooth. In this case, the nominal size is 1 1/2 inches by 1 1/2 inches.
To convert the distance of 16.0 inches to centimeters, we can use the conversion factor that 1 inch is equal to 2.54 centimeters. So, multiplying 16.0 by 2.54 gives us the distance of 40.64 centimeters.