Question

calculate the arc length of a portion of circle of radius 5cm subtended angel at 250 degree​

Answer 1

Explanation:

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Given 

⇒  Length of an arc =35πcm

⇒  r=5cm

⇒  Length of an arc =360oθ(2πr)

Where, θ is angle subtended at a center.

             2πr is circumference of a circle.

∴  35π=360oθ×2π×5

∴  θ=6360o

∴   θ=60o

Answer 2

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Refer to the attachment

Explanation:

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