A wooden box without cover. The thickness of the board is known to be 1 cm. Find the volume and volume of the wooden box. The width is 5.2 decimeters, the length is 1 decimeter, and the length is 8.7 decimeters Why?

A wooden box without cover. The thickness of the board is known to be 1 cm. Find the volume and volume of the wooden box. The width is 5.2 decimeters, the length is 1 decimeter, and the length is 8.7 decimeters Why?

Volume = L * w * H = 8.7 * 5.2 * 3.1 = 140.244
The volume should be measured from the inside
1 cm = 0.1 decimeter
Length = 8.7-0.1-0.1 = 8.5
Width = 5.2-0.1-0.1 = 5
Height = 3.1-0.1 = 3
Volume = L * w * H = 8.5 * 5 * 3 = 127.5
Note: when calculating the volume, the length and width shall be reduced by 1cm from both sides, and the height shall be reduced by 1cm below

A wooden box without cover, the thickness of the board is 1cm, find the volume and volume of the wooden box. The length is 5.2 decimeters, the width is 8.7 decimeters, and the height is 3.1 decimeters
It seems that the thickness of the board is related to the volume of the wooden box

Yes, the thickness of the board is related to the volume of the box
1 cm = 0.1 decimeter
Volume = 5.2 × 8.7 × 3.1 = 140.244 cubic decimeter
Volume = (5.2-0.1 × 2) × (8.7-0.1 × 2) × (3.1-0.1) = 127.5 cubic decimeter

A cuboid wooden box without cover is 7 decimeters long, 5 decimeters wide and 6 decimeters high. The thickness of the board is 2 cm. What is the volume of this wooden box?

(70-2) x (50-2) x (6-2)