Answer
A. Find the proportion of the sector defined by the major arc to the circle, then multiply by the area of the circle.
Step-by-step explanation
The proportion of the sector defined by the major arc BRJ to the circle with respect to the angle can be given by:
![\frac{\operatorname{Re}flex\angle BCJ}{360}]()
The area of the circle of radius, r is given by πr²
Putting these together, this implies, the proportion of the sector defined by the major arc to the circle, then multiply by the area of the circle.
