The angle subtended by the arc of 2m length at the centre of a circle of 1m radius is _____
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Answer:
Explanation:
Length of an arc =
3
5π
cm
⇒ r=5cm
⇒ Length of an arc =
360
o
θ
(2πr)
Where, θ is angle subtended at a center.
2πr is circumference of a circle.
∴
3
5π
=
360
o
θ
×2π×5
∴ θ=
6
360
o
∴ θ=60
o
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