A cuboid packing box, measured from the inside, with a side length of 0.8 m square at the bottom, 5 m. what is the volume of this packing box/

A cuboid packing box, measured from the inside, with a side length of 0.8 m square at the bottom, 5 m. what is the volume of this packing box/


0.8 × 0.8 × 1.5 = 0.96 (M3)



There is a rectangular mail box, which needs to be reinforced with nylon braids in three directions. The nylon braids used are 325cm and 37cm respectively


2. The perimeter of each aspect of the cuboid is 320, 372, 452, the longest side and the second longest side respectively, and 452 / 2 = 226, the longest side and the shortest side respectively, and 372 / 2 = 186, the second longest side and the shortest side respectively, and 320 / 2 = 160, so the longest side is 186-160 = 26 more than the second longest side, so the longest side = (226 + 26) / 2 = 126 can be obtained, and the second longest side can be obtained in turn



The worker made a rectangular mail packing box with thin board and reinforced it with nylon braids in three directions. The nylon braids were 265
Cm, 225 cm, 285 cm. If the overlap of each nylon braid is 5 cm, what is the volume of the cuboid box?


Let length, width and height be a, B and C respectively
2(a+b)=265-5=260
2(b+c)=225-5=220
2(c+a)=285-5=280
Then 4 (a + B + C) = 760, C = 60, a = 80, B = 50,
V = 60 * 80 * 50 = 240000 cubic centimeter = 0.24 cubic meter