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Conversion of Units

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Conversion of units:

Based on the conversion of units for lengths, studied earlier, the units of areas can also be converted:

  • Kilometres, metres, centimetres, millimetres are units of length.
  • 10 millimetres = 1 centimetre
  • 100 centimetres = 1 metre
  • 1000 metres = 1 kilometre

  • Unit Conversion
    1 cm2 100 mm2
    1 m2 10,000 cm2
    1 ha 10,000 m2

Convert the following:

(i) 50 cm2 in mm2

⇒ 1 cm2 = 100 mm2

∴ 50 cm2 in mm= 100 x 50 = 5000 mm2

(ii) 2 ha in m2

⇒ 1 hectare = 10000 m2

∴ 2 ha in m= 2 x 10000 = 20,000 m2.

(iii) 10 m2 in cm2

⇒ 1 m2 = 10,000 cm2

∴ 10 m2 in cm= 10 x 10,000 = 100,000 cm2.

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