240 mm is a linear measurement and cannot be converted directly to an area measurement such as cm squared. If you meant to ask for the area of a square with sides of 240 mm, the calculation would be:
Area = length x width = 240 mm x 240 mm = 57,600 mm²
To convert to cm², we divide by 100² (since there are 100 cm in 1 m and 100 mm in 1 cm):
Area in cm² = 57,600 mm² ÷ 100² = 576 cm²
240 mm how many in cm squared
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