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Sectors - Questions

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Question 1
124444

\(A O B\) is a sector of a circle, centre \(O\) and radius \(5 \mathrm{~cm}\). The sector has an area of \(10 \pi \mathrm{cm}^2\)

What is the arc length of the sector, in centimetres?

A.

\(2 \pi \)

B.

\(4 \pi \)

C.

\(6 \pi \)

D.

\(10 \pi \)

\(4 \pi \)

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