In a circle of radius \( 14 \mathrm{~cm} \), an arc subtends an ang...

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In a circle of radius \( 14 \mathrm{~cm} \), an arc subtends an angle of \( 45^{\circ} \) at the centre, then the area of the sector is
(a) \( 71 \mathrm{~cm}^{2} \)
(b) \( 76 \mathrm{~cm}^{2} \)
(c) \( 77 \mathrm{~cm}^{2} \)
(d) \( 154 \mathrm{~cm}^{2} \)
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