How long is an arc of a sector of a circle of radius 6cm and angle 30°?
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Answer:
⇒ r=6cm and θ=110
o
[ Given ]
⇒ Length of an arc =
360
o
θ
(2πr)
Where, θ is angle subtended at a center.
2πr is circumference of a circle.
⇒ Length of an arc AB=
360
o
110
o
×2×
7
22
×6
∴ Length of an arc AB=
21
242
=11.52cm
Step-by-step explanation:
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