Remember the mnemonic device: "Kids Have Dogs But Dogs Cost Money" or Kilo, Hecto, Deca, Base, Deci, Centi, Milli"
So based off our mnemonic device cm is already less than dm. So therefore, 4cm < 4dm.
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4 centimeters is ~1.57 inches.
4.45cm to the nearest cm = 4cm
3.5 rounded to the nearest cm is 4cm
The answer depends on the units used for 3.5
The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.