The correct option is D (π−3√32)r2
When a regular hexagon is inscribed in a circle of radius , r, its length of side will also be r
Area of the hexagon of side "r" =3√32r2
And Area of a circle of radius r =πr2
So, Area of the circle is more than the area of hexagon by πr2−3√32r2=(π−3√32)r2