Answer:
Therefore the first option is the best to explain the above Formula.
The central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.
Explanation:
Given:
∠ ZYX = center angle
ZY = XY =Radii of Same Circle
Yellow Color Area in the Figure below = area
of the shaded sector
Solution:
Area Of Sector For an angle 'θ' is given as

Where,

Here,
Center Angle is ∠ ZYX = θ
Therefore the first option is the best to explain the above Formula.
The central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.