The area of sector AOB is 210.25 cm². What is the exact area of the shaded region?
До
0 29 cm
B
OA. (210.25 -420.5) cm²
OB. (210.25-841) cm²
OC. (210.25 -420.5√√2) cm²
OD. (210.25-841 √2) cm²
