Answer:
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
Step-by-step explanation:
we know that
The formula to calculate the area of sector is equal to

where
----> is the area of sector
----> is the central angle measure of the sector in degrees
---> total angle measure of a circle in degrees
---> represent the area of the circle
see the attached figure to better understand the problem
we have
----> central angle of sector ZYX
----> total angle measure of a circle in degrees
---> represent the area of the circle
substitute in the formula
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therefore
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