MCQ PracticeThe area of the shaded region in the adjoining figure isSubject: MathematicsTopic: AreasA$${a^2}left( {pi - 1} right)sq.units$$B$${a^2}left( {frac{pi }{2} - 1} right)sq.units$$C$$frac{{{a^2}}}{2}left( {pi - 1} right)sq.units$$D$$frac{{{a^2}}}{2}left( {frac{pi }{2} - 1} right)sq.units$$Correct Answer: BPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the