In a circle with radius $14 \,cm$, an arc subtends a right angle at the centre. Find the length of this arc and the area of minor sector and minor segment formed by it.
In a circle with radius $14 \,cm$, an arc subtends a right angle at the centre. Find the length of this arc and the area of minor sector and minor segment formed by it.
$22 cm ,154 cm ^{2}, 56 cm ^{2}$
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