Density is obtained by diving mass over volume. Dividing 2.6 by 40 will give us the density of the volume.
48,000 cubic cm
how big is 30 cm x 40cm
40cm
40cm
40cm.
40cm
40 cm = 15.75 inches
40cm
40cm in height.
D = ~12.73 cm
36 m : 40 cm = 3600 cm : 40 cm = 90 : 1
to my concerns is is 40cm