A sector is cut from a circle of radius ...

A sector is cut from a circle of radius 21 cm. If the length of the arc of the sector is 55 cm, then what is the area of the sector? (Take `pi = 22/7`)

A

`577.5 cm^(2)`

B

`612.5 cm^(2)`

C

`705.5 cm^(2)`

D

`725.5 cm^(2)`

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