A wooden box with a lid has internal dimensions of 115 cm by 75 cm by 35 cm. If the wood used has a thickness of 2.5 cm, what is the volume of the wood material forming the box?

Explanation

To find the volume of the wood, calculate the volume of the outer box including thickness, then subtract the inner volume. The outer dimensions are (115 + 2*2.5) cm, (75 + 2*2.5) cm, and (35 + 2*2.5) cm. The difference between outer and inner volumes gives the volume of the wood, which is 82,125 cubic centimeters.