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Standard VII
Mathematics
Major Arc, Minor Arc and Semicircular Arc
The area of a...
Question
The area of a sector of a circle of
6
c
m
radius is
15
π
s
q
.
c
m
. Find the measure of are and length of the arc corresponding to the sector.
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Solution
Area of sector
=
15
π
c
m
2
Area of sector
=
θ
360
×
π
r
2
Hence,
15
π
=
θ
36
×
π
×
6
×
6
⇒
θ
=
150
Length of are
=
θ
360
×
2
π
r
=
150
360
×
2
×
π
×
6
=
5
π
c
m
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Similar questions
Q.
Given :
Area of sector
=
15
π
s
q
.
c
m
radius
=
6
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m
To find :
Length of the arc corresponding to the sector.
Q.
Area of a sector of a circle of radius
36
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. Find the length corresponding arc of the sector.
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Area of sector of circle of radius 36 cm is 54
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Q.
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