Q. about conversion of area from cm(square) or mm(square) to m(square)

Discussion in 'Homework Help' started by JimmyB, Jun 2, 2010.

  1. JimmyB

    Thread Starter Member

    Jun 1, 2010
    38
    0
    Can anyone explain why, If you have a equation that has (area) in it, and it is given in cm2 or mm2 when you convert it into m2 for the equation to work, the area seems to be smaller than before.

    eg. from my text book 500cm2 is supposidly 0.05m2
    I would have thought 500cm2 would be 5m2

    another example CSA of 500mm2 is 0.0005m2

    ??
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Say you have a rectangle 50cm by 10cm

    The area is A=50*10=500 sq cm

    The same rectangle is also 0.5m by 0.1m

    The area is therefore also A= .5*0.1=0.05 sq m

    So A = 500 sq cm = 0.05 sq m

    Keep in mind a square metre = 100cm * 100cm = 10,000 sq cm
     
    Last edited: Jun 2, 2010
  3. JimmyB

    Thread Starter Member

    Jun 1, 2010
    38
    0
    thankyou very much tnk!!
     
  4. JimmyB

    Thread Starter Member

    Jun 1, 2010
    38
    0
    ....................
     
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