The side length of a square inscribed in a circle is What is the area of the circle shown at the right? 
সমাধান
সঠিক উত্তর: Option B
We know,
Diagonal of a square=√2×a
= √2×2
So, Radius (r)= (√2×2)/2
= √2
Therefore,
Area of the circle=πr2
= π(√2)2
= 2π (Ans.)
