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A rectangular glass tank, the bottom is a square with a circumference of 56 cm, now pour 9 liters of water into the tank, what is the height of the water in the tank? (integer is reserved for the result)
9 L = 9 cubic decimeter, 56 cm = 5.6 decimeter, 5.6 △ 4 = 1.4 (decimeter), 9 △ 1.96 ≈ 5 (decimeter), a: the height of water in the cylinder is 5 decimeter
A rectangular glass fish tank, the ground is a square with a circumference of 200cm, and the water depth inside is 32cm?
8000/200=40 40+32=72
A cuboid fish tank, the bottom is a 100 cm square circumference, into the tank into 10 liters of water, the tank depth of a few centimeters
10 L = 10000 CC
100 △ 4 = 25 cm
10000 ÷ (25 × 25) = 16 cm
Answer: the water depth in the cylinder is 16 cm
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