Points A and B lie on a circle centered at point O. If OA = 5 and length of AB own circumference = 1 4 , what is the area of sector AOB? Posted on October 18, 2020 | by wp Points A and B lie on a circle centered at point O. If OA = 5 and length of AB own circumference = 1 4 , what is the area of sector AOB?