Quy
Find the length of arc of are of a sector of
a circle whose radiuss is 21 am and the angle
subtended at the centre is 30°
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Answer:
11 cm
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
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