72 centimetres.
There are 10 millimetres in 1 centimetre.
Standard pressure is 760mm Hg, so the difference in pressure is 40mm Hg (760mm - 720mm).
A decimetre is 10cm so to convert from dm to cm you simply multiply by 10, e.g. 10dm = 100cm
10 milimeters
A square centimeter measures area, and a centimeter measures length, so they are not exactly comparable in size.
there are 10 millimeters in a centimeter
Divide by 10...
You cannot change square centimeter to centimeter. The square centimeter is a measure of area and the centimeter is a measure of distance.
28.3464
0.72m
72.0
720mm
You don't. "Cubic centimeter" is a unit of volume, "centimeter" is a unit of length. The question is the same as asking "How do you change gallons to inches ?"
720mm
To measure 720mm with a 30cm ruler, first note that 720mm equals 72cm. Since the ruler only measures up to 30cm, you would need to use it multiple times. Measure 30cm twice to get 60cm, then measure an additional 12cm using the ruler, which can be achieved by marking the 12cm point on the ruler after measuring the full 30cm twice. This will give you a total of 72cm or 720mm.
720mm equals 72cm
Standard pressure is 760mm Hg, so the difference in pressure is 40mm Hg (760mm - 720mm).
Multiply by 10 (there are 10 millimeters per centimeter).