circular measure
DESCRIPTION
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Circular measureCircular measure
Area of a CircleDefinition of radians
Click on a topic
Area of a Sector
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Definition of
Definition of
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(Pi)
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Take any size of circle.
d
C
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
d
C
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
d
C
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
C
d
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
C
d
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
C
d
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
C
d
is about 3 times
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C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
dC
C
d
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This is true for any size of circle
C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
dC = 3.1415927 x
C
d
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This number is called (pi)
This is true for any size of circle
C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
dC = x
dC = 3.1415927 x
C
d
dC = x
= 3.1415927
dC = 3.1415927 x
This number is called (pi)
This is true for any size of circle
C is the Circumference, the distance around the outside.
d is the Diameter.
Take any size of circle.
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Definition
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S Sr
radians
r
11ccDefinitionDefinition 22cc
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33cc 44cc 55cc 66cc 1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 1radian
11ccDefinitionDefinition
S = r
Sr
radians
r
22cc
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33cc 44cc 55cc 66cc 1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 2 radians
11cc 22ccDefinitionDefinition
S = 2r
Sr
radians
r
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33cc 44cc 55cc 66cc 1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 3 radians
11cc 22cc 33ccDefinitionDefinition
S = 3r
Sr
radians
r
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44cc 55cc 66cc 1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 4 radians
11cc 22cc 33cc 44ccDefinitionDefinition
S = 4r
Sr
radians
r
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55cc 66cc 1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 5 radians
11cc 22cc 33cc 44cc 55ccDefinitionDefinition
S = 5r
Sr
radians
r
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66cc 1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 6 radians
11cc 22cc 33cc 44cc 55cc 66ccDefinitionDefinition
S = 6r Sr
radians
r
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1 revolution1 revolution
cc means circular measure i.e. radians means circular measure i.e. radians
Definition
ExitExit
= 2 radians
11cc 22cc 33cc 44cc 55cc 66cc 1 revolution1 revolutionDefinitionDefinition
S = 2r
Sr
radians
r
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cc means circular measure i.e. radians means circular measure i.e. radians
Area of a circle
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Show dimensionsShow dimensions
Area of a circle
Cut into sectorsCut into sectors
r
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C =2 r
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Area of a circle
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C =2 r
r
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Open outOpen out
C 2
r
= r
Area of a circleC =2 r
C 2
= r
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Push togetherPush together
Area of a circleC =2 r
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Area of rectangleArea of rectangle
r
r
r
r
Area = r2
Area of a circleC =2 r
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Area of a sector
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Show dimensionsShow dimensions
Cut into small sectorsCut into small sectors
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Area of a sector
S = rr
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Open outOpen out
Area of a sector
S = rr
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Open outOpen out
Area of a sectorr2
r2
r
r
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Push togetherPush together
Area of a sectorr2
r2
r
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Area of a sector
r2
Area of rectangleArea of rectangle
Area = ½ r2
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Area of a sector
r
r2