The area of a sector of a circle with a central angle of 3 radians is 8cm². Find the radius of the circle. Do not round any intermediate computations.



Answer :

Step-by-step explanation:

Area of the sector =    3 / 2pi      *  pi *  r^2     = 8 cm^2

       solve for r = 4/3 * sqrt 3 = 2.3 cm