Marbles of diameter 10mm each to be arranged on a flat surface so that their centers lie within the area enclosed by four lines of length each 40 mm. Sketch the arrangement that will given the maximum number of marbles per unit area, that can be enclosed in this manner and deduce the expression to calculate it

Marbles of diameter 10mm each to be arranged on a flat surface so that

1.	Marbles of diameter 10mm each to be arranged on a flat surface so that their centers lie within the area enclosed by four lines of length each 40 mm. Sketch the arrangement that will given the maximum number of marbles per unit area, that can be enclosed in this manner and deduce the expression to calculate it
Answer» ANSWER :25, 1.804 MARBLES/`CM^(2)`