Points A and Blie on a circle centered at point O. It OA=5 and length of AB/circumference = 1/4 what is the area of sector AOB? Use the value π =3.14 ,and choose the closest answer. A. 19.6 square units
B. 39.3 square units
C. 7.85 square units
D. 15.7 square units
B. 39.3 square units
C. 7.85 square units
D. 15.7 square units