Answer :

The arc length of the partial circle is 12,56 units.

How to find the length of an arc?

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

  • r = radius
  • ∅ = central angle

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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