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EXAM 1
Study Aids
or…
Think, Multiply, Divide, Conquer
epw 9/17/2008 Slide 1-2
Conversion Factors
Every Conversion Factor can be Written Three Different Ways
1 in. = 2.54 cm
1 in. = 1
2.54 cm
2.54 cm = 1
1 in.
Convert Miles to Kilometers
Given 1 in. = 2.54 cm
epw 9/17/2008 Slide 1-3
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot
epw 9/17/2008 Slide 1-4
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in.
epw 9/17/2008 Slide 1-5
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm
1 in.
epw 9/17/2008 Slide 1-6
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in.
epw 9/17/2008 Slide 1-7
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in. 1 mile = ???? ft
epw 9/17/2008 Slide 1-8
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in. 1 mile = 5280 ft
epw 9/17/2008 Slide 1-9
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in. 1 mile = 5280 ft x 30.48 cm
ft
epw 9/17/2008 Slide 1-10
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in. 1 mile = 5280 ft x 30.48 cm = 160934.4 cm
ft
epw 9/17/2008 Slide 1-11
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in. 1 mile = 5280 ft x 30.48 cm = 160934.4 cm
ft Now convert 160934.4 cm to km
epw 9/17/2008 Slide 1-12
Centimeters to Meters to Kilometers
100 cm = 1 m
epw 9/17/2008 Slide 1-13
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
epw 9/17/2008 Slide 1-14
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
1 km = 1000m
epw 9/17/2008 Slide 1-15
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
1 km = 1000m 1 km = 1
1000 m
epw 9/17/2008 Slide 1-16
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
1 km = 1000m 1 km = 1
1000 m
160934.4 cm x 1 m
100 cm
epw 9/17/2008 Slide 1-17
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
1 km = 1000m 1 km = 1
1000 m
160934.4 cm x 1 m
100 cm
epw 9/17/2008 Slide 1-18
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
1 km = 1000m 1 km = 1
1000 m
160934.4 cm x 1 m x 1 km =
100 cm 1000 m
epw 9/17/2008 Slide 1-19
Centimeters to Meters to Kilometers
100 cm = 1 m 1 m = 1
100 cm
1 km = 1000m 1 km = 1
1000 m
160934.4 cm x 1 m x 1 km = 1.6093 km
100 cm 1000 m
epw 9/17/2008 Slide 1-20
Convert Miles to Kilometers
Given 1 in. = 2.54 cm Calculate how many cm are in 1 foot 1 ft = 12 in. 1 ft = 12 in. x 2.54 cm = 30.48 cm
1 in. 1 mile = 5280 ft x 30.48 cm = 160934.4 cm
ft
1 mile = 1.6093 km
epw 9/17/2008 Slide 1-21
How Many Square Kilometers are in One Square Mile?
epw 9/17/2008 Slide 1-22
How Many Square Kilometers are in One Square Mile?
1 mi = 1.6093 km
epw 9/17/2008 Slide 1-23
How Many Square Kilometers are in One Square Mile?
1 mi = 1.6093 km
(1 mi)2 = (1.6093 km)2
epw 9/17/2008 Slide 1-24
How Many Square Kilometers are in One Square Mile?
1 mi = 1.6093 km
(1 mi)2 = (1.6093 km)2
1 mi2 = 2.5898 km2
epw 9/17/2008 Slide 1-25
How Many Square Kilometers are in One Square Mile?
1 mi = 1.6093 km
(1 mi)2 = (1.6093 km)2
1 mi2 = 2.5898 km2
One square mile is 2.5898 square kilometers
epw 9/17/2008 Slide 1-26
It’s Cool to be Square
1 acre is 43,560 square feet
epw 9/17/2008 Slide 1-27
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile?
epw 9/17/2008 Slide 1-28
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile? 3 ways to write the conversion factor
1 acre = 43,560 ft2
epw 9/17/2008 Slide 1-29
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile? 3 ways to write the conversion factor
1 acre = 43,560 ft2
1 = 1 acre 43,560 ft2
epw 9/17/2008 Slide 1-30
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile? 3 ways to write the conversion factor
1 acre = 43,560 ft2
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
epw 9/17/2008 Slide 1-31
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile? 3 ways to write the conversion factor
1 acre = 43,560 ft2
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
1 mi. = 5280 ft
epw 9/17/2008 Slide 1-32
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile? 3 ways to write the conversion factor
1 acre = 43,560 ft2
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2
epw 9/17/2008 Slide 1-33
It’s Cool to be Square
1 acre is 43,560 square feet How many acres are in a square mile? 3 ways to write the conversion factor
1 acre = 43,560 ft2
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2 = 52802 ft2 = 27,878,400 ft2
epw 9/17/2008 Slide 1-34
It’s Cool to be Square
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2 = 52802 ft2 = 27,878,400 ft2
epw 9/17/2008 Slide 1-35
It’s Cool to be Square
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2 = 52802 ft2 = 27,878,400 ft2
epw 9/17/2008 Slide 1-36
It’s Cool to be Square
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2 = 52802 ft2 = 27,878,400 ft2
1 mi2 = 27,878,400 ft2 x 1 acre 43,560 ft2
epw 9/17/2008 Slide 1-37
It’s Cool to be Square
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2 = 52802 ft2 = 27,878,400 ft2
1 mi2 = 27,878,400 ft2 x 1 acre 43,560 ft2
epw 9/17/2008 Slide 1-38
It’s Cool to be Square
1 = 1 acre 1 = 43,560 ft2
43,560 ft2 1 acre
(1 mi.)2 = (5280 ft)2 = 52802 ft2 = 27,878,400 ft2
1 mi2 = 27,878,400 ft2 x 1 acre = 640 acres 43,560 ft2
epw 9/17/2008 Slide 1-39