How 251.36centimeter is equal to 251centimeter?

Answer 1

rounded to the nearest centimeter, yes.

Answer 2

Precision is overrated for most purposes! When I was learning physics, we used slide rules and log tables to do calculations. These are 1% and 4 decimal precision. The fact that our calculators show 10 digits behind the decimal point does not mean they mean anything. So much of the time 251.36 cm is equal to 251 cm.

I have seen calculations where an uncertainty of 1 in the Exponent is considered tolerable. For example, all supernovae have the same energy, 1 FOE. FOE stands for fifty-one ergs. The 51 is in the exponent!

Answer 3

Well, it is really a matter of significant figures. the more the decimal places a measurement has, the more accurate it is. In this case, when we consider 251.36 cm to three significant figures, it'll be equal to 251 centimeters. You might call it rounding off to the nearest whole number but in taking measurements, this is the basis by which you can gauge whether your measurements are just precise or accurate. this is a big deal for scientists and mathematicians doing measurements in their experiments.

Answer 4

It isn't. But you might not worry about fractions of a centimetre if they didn't matter for whatever you were doing, or if you were not sure that you could measure with such accuracy.

In that case you would round your measurement to the nearest centimetre, and agree to say that 251.36cm "is equal to" 251cm.

Answer 5

no however if you use an approximate value it is equal, as

251*2=502 while 251.36*2=502.72
so for what ever value u multiply the no wid u will get different
answers

Answer 6

Not equal. There is a difference of 36000 nanometers.

Answer 7

Because : (.36)<(.50) . You don't round 251.36 to 252.00 but to 251.00