Unknown. Density is a function of volume, not area.
210 cm³
You don't, 210 cm is a simple length, square meters are for surfaces. Unless of course you mean 210 cm2, in which case there are 10 000 cm2 in one m2. 210/10 000 - you do the math (and m2 is another way of writing square meter)
210 cm = 82.7 inches, approx.
Sounds like density...
There are 2.10 meters in 210 centimeters.
70 % of 300 cm = 210 cm
10.5 g cm-3
no, the mass would stay the same and the volume would stay the same so density is also the same
You don't, 210 cm is a simple length, square meters are for surfaces. Unless of course you mean 210 cm2, in which case there are 10 000 cm2 in one m2. 210/10 000 - you do the math (and m2 is another way of writing square meter)
210 cm³
210 cm = 82.7 inches, approx.
70 square cm.
210 cm = 2100 mm
Sounds like density...
To calculate the density, you need two things. Mass and volume. Here you have a mass of 275 grams. 588 cm square is an area and not a volume. So you can not calculate the density here.
185 inches x 102 inches = 12.17 square meters.
5g/cm3