Answer :
Final answer:
The correct size of 1x4 lumber is 3/4 x 3 1/2 inches (option a). To convert the dimensions of two-by-four to metric, the measurements would be 3.81 cm x 8.89 cm x 2.44 m. Studs are typically placed 40.64 centimeters apart, converting the 16 inches spacing to centimeters.
Explanation:
The actual size of a 1x4 piece of lumber is not, in fact, 1 by 4 inches. Instead, the standard dimensions are a bit smaller due to the planing process and are 3/4 x 3 1/2 inches. Thus, the correct answer to what is the actual size of 1x4 lumber is option (a) 3/4 x 3 1/2 inches. For part (a) of your question, to convert the dimensions of "two-by-four" lumber (1.50 in. x 3.50 in. x 8.00 ft) to metric, we will use the conversion factors where 1 inch equals 2.54 centimeters and 1 foot equals 0.3048 meters. The dimensions in metric units would be approximately 3.81 cm x 8.89 cm x 2.44 m.
To answer part (b), we'll convert the 16.0-inch distance between vertical studs to centimeters. Since 1 inch equals 2.54 centimeters, multiplying 16 inches by 2.54 shows that the studs are placed 40.64 centimeters apart.
