Fraction of the area of the circle is the area of the shaded region is 5/18.
From the figure:
The shaded region has angle = 100
In the circle the total angle is 360.
Fraction = 100/360
= 50/180
= 25/90
= 5/18
Therefore fraction of the area of the circle is the area of the shaded region is 5/18.
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