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1 foot = 12 inches = 30.48 cm
1 inch = 2.54 cm
there are more units ~
1/2" = 1/2 inch
1/8" = 1/8 inch
you can apply the same rule to others
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EXAMPLE:
so when you buy furniture online
71 1/2"H x 30"W x 23 1/2"D
the label tells you
the height = 71.5 inches = 181.61 cm
the width = 30 inches = 76.2 cm
the depth = 23.5 inches = 59.69 cm
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物理 and 數學 (1)