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1.)s denotes the length of the arc of a circle of radius r subtended by the central angle ø. find the missing quantity. round to three decimal places

r= 10 meters, ø=1/2 radian, s= ?

2.) A denotes the area of the sector of a circle of radius r formed by the central angle ø. find the missing quantity. round to three decimal places

ø= 1/3 radian, A= 2 square feet, r= ?