One cubic decimeter iron weighs 7.8 kg. There is a rectangular iron block with a square bottom, which weighs 93.6 kg. It is known that the side length of the square is 20 cm. How long is the iron block?

One cubic decimeter iron weighs 7.8 kg. There is a rectangular iron block with a square bottom, which weighs 93.6 kg. It is known that the side length of the square is 20 cm. How long is the iron block?

93.6 / 7.8 / (2 * 2) = 3DM = 30cm

One cubic decimeter iron weighs 7.8 kg. A rectangular iron block with a square bottom weighs 93.6 kg
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(1 cubic decimeter iron weighs 7.8 kg. There is a rectangular iron block with a square bottom, which weighs 93.6 kg. It is known that the side length of the square is 20 cm. How long is the iron block?)
What about that 20

Because 93.6 / 7.8 = 12 cubic decimeters, calculate the volume of iron
Bottom area of iron block 2 * 2 = 4 cubic decimeter
Iron block length = iron block volume / iron block bottom area = 12 / 4 = 3DM = 30cm

A rectangular iron block is 10 decimeters long, 5 decimeters wide and 4 decimeters high. Each cubic decimeter iron block weighs 7.8 kg. How many kg does this iron block weigh?

10 × 5 × 4 × 7.8, = 200 × 7.8, = 1560 (kg). Answer: this iron block weighs 1560 kg

The height of a rectangular iron sheet is five decimeters, the bottom is a square, and the side length is four decimeters

7 × (4 × 4 × 5) = 560 (kg)