(c) 6 densely packed angulat are placed on a plane so as to form dense lattice. the number of discs per unit area is approximately- 1.10 circular discs of radiu

(C) 6 densely packed angulat are placed on a plane so as to form dense lattice. The number of discs per unit area is approximately- 1.10 Circular discs of radius 1m each (B) (A) 0.19 (D) 0.29 (C) 0.39