Page:Book of record of the time capsule of cupaloy (New York World's fair, 1939).djvu/46

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Units of Linear Measurement

ENGLISH SYSTEM


< ---1 INCH--- >

12 inches = 1 foot
3 feet = 1 yard
5,280 feet = 1 mile
1 inch = 2.54 centimeters

METRIC SYSTEM


<----->

1 CENTIMETER

1 centimeter = 10 millimeters
100 centimeters = 1 meter
1000 meters = 1 kilometer
1 centimeter = .3937 inch

1 meter is equal to 1,553,164.13 wave
lengths of red cadmium light