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Byju's Answer
Standard VII
Mathematics
Circumference of a Circle
The arc lengt...
Question
The arc length of a sector is
66
cm and the central angle is
30
o
. Find its radius.
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Solution
Length of any arc is given by
l
=
r
θ
Given
l
=
66
c
m
,
θ
=
30
∘
=
π
6
⟹
r
=
66
22
×
7
×
6
=
126
c
m
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The length of arc of a sector is 22 cm and its radius is 10.5 cm. Find its central angle.
Q.
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