We know that, Area of a Circle is given by : πR²
Where : R is the Radius of the Circle.
We can Notice that : The Given Figure is One - Fourth of the Circle with Radius 'R'

We can Notice that : The Quarter of the Circle is divided into 3 Equal Parts and The Shaded Region is One of the Equal Part.


Using distance formula, I got C.
Answer:
B
Step-by-step explanation:
B is the correct answer becuase the definition of an adjacent angle is two angles that have a common side. HVI and IVJ are the only two options that are adjacent angles. Hope this helps!