Question

Find the arc length of the partial circle

Answer 1

Answer:

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Answer 2

$\sf \purple{we \: know \: that : }$

$\red{ \boxed{\sf{length \: of \: arc(partial\: circle) = \frac{x \degree}{360} \times 2\pi r }}}$

$\implies \sf length \: partial \: circle = \frac{90}{360} \times 2\pi \times 8$

$\implies \sf length \: partial \: circle = \frac{1}{4} \times 16\pi$

$\orange{\therefore \sf length \: partial \: circle = 4\pi =12.56 }$