Find of length of arc sector of central angle o=30⁰ and r=21
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Step-by-step explanation:
radius of the circle (r) =21 cm
θ = 30 degree
length of an arc of a sector = θ/360 ⨯ 2πr
= 30/360 ⨯ 2⨯22/7⨯ 21
= 11 cm
I hope that this was helpful
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