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In a circle of radius 21 cm, an arc subtends an angle of 60^° at the centre. Find:
(i) the length of the arc
(ii) area of the sector formed by the arc
(iii) area of the segment formed by the corresponding chord
Answer variants:
231cm^2
150 cm^2
22cm
25cm
50.26 cm^2
40.27cm^2
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