A cube with 2 mm edge length is cut into two cuboids with equal volume. The surface area of one cuboid is 1______ dm2.
2 × 2 × 8 / 2, = 32 / 2, = 16 (square decimeter), a: the surface area of one of the cuboids is 16 square decimeter
The outer packing box of a color TV is a cuboid, 95 cm long, 60 cm wide and 75 cm high. The packing box covers an area of () square cm?
This color TV box covers an area of (95 * 60 = 5700) square centimeters
If you don't understand, I wish you a happy study!
The packing box of a refrigerator is a rectangle with no bottom. How many square centimetres of cardboard do you need to make the packing box?
We should know the length L, width W and height H
Packing box area = 2H (L + W) + L * W