The arc length of the partial circle is 12,56 units.
The arc of a circle is defined as the part or segment of the circumference of a circle.
Therefore,
length of an arc = ∅ / 360 × 2πr
where
Hence,
∅ = 90 degrees
r = 8 units
length of an arc = 90 / 360 × 2 × 3.14 × 8
length of an arc = 4521.6 / 360
length of an arc = 12.56 units.
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