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Measurement
Chapter 9 - Vocabulary for Length, Area, Time, Temperature
31
Mathematics
5th Grade
01/24/2011

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Term
meter
Definition
a metric unit of length equal to 100 centimeters
Term
m
Definition
abbreviation for meter
Term
centimeter
Definition

a metric unit of length

100 cm = 1 meter

Term
cm
Definition
abbreviation for centimeter
Term
millimeter
Definition

a metric unit of length

1,000 mm=1 m

Term
mm
Definition
abbreviation for millimeter
Term
kilometer
Definition
a metric unit of length equal to 1,000 meters
Term
km
Definition
abbreviation for kilometer
Term
hectometer
Definition
metric unit of length equal to 100 meters
Term
hm
Definition
abbreviation for hectometer
Term
dekameter
Definition
a metric unit of length equal to 10 meters
Term
dam
Definition
abbreviation for dekameter
Term
decimeter
Definition

a metric unit of length

10 dm = 1 m

Term
dm
Definition
abbreviation for decimeter
Term
perimeter
Definition
the distance around the outside of any polygon
Term
formula
Definition
an equation that states a rule
Term
circumference
Definition
the distance around a circle
Term
diameter
Definition
any line segment through the center that connects two points on the circle
Term
radius
Definition
any line segment that connects the center of a circle to a point on the circle
Term
pi
Definition
the ratio of the circumference of a circle to its diameter - approximately 3.14
Term
[image]
Definition
the symbol for pi
Term
area
Definition
the number of square units needed to cover a surface or figure
Term

base

(of a polygon)

Definition

the side of a polygon to which the height is perpendicular

[image] 

Term

height

(of a polygon)

Definition

the length of a segment from one vertex of a polygon perpendicular to the base

[image]

Term
elapsed time
Definition
the difference between two times
Term
Fahrenheit
Definition

measurement of temperature in degrees

(customary system)

Term
°F
Definition
the symbol representing Fahrenheit
Term
Celsius
Definition

measurement of temperature in degrees

(metric system)

Term
°C
Definition
the symbol representing Celsius
Term
the boiling point of water
Definition

212°F

or

100°C

Term
the freezing point of water
Definition

32°F

or

0°C

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