Solution to

Frame 4-13.

How many centimeters are in one kilometer?

12x3x5.5x40x8 = 63,360

inches

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Solution to

Originally, the meter was based on the polar circumference of the earth

Frame 4-14.

with the measurement going through Paris. The meter was to be one

ten-millionth (1/10,000,000) of the distance from the equator to the North

100 x 1000 = 100,000

Pole. If the Academy's measurements were correct, the distance from

centimeters

the equator to the North Pole would be ten

.

(Hint: Refer to Frame 4-11.)

(number of centimeters in a

meter times number of

meters in a kilometer)

NOTE: The polar circumference of the earth is estimated to be

40,000,008 meters. The distance from the equator to the North Pole is

1/4 the polar circumference, or about 10,000,002 meters.

NOTE: The earth is not a perfect sphere. The circumference of the earth

measured around the equator is around 40,075,160 meters.

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Solution to

Frame 4-15.

measurements of distance are the meter, kilometer, centimeter, and

millimeter.

megameters

Since one millimeter equals 0.001 meter and one centimeter equals 0.01

meters, how many millimeters are in one centimeter?

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MD0900

4-7

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