4
0.2
1metre=100cm 1/5 of 100cm=100 divided by 5=20cm so one fifth(1/5) of 1metre=20cm
5 per cent of 20 is 1. So if the student makes a mistake of exactly 5 per cent then his measurements are 20 +/- 1 cm. That is, 19 or 21 cm.
20cm is equivalent to 0.2 meters. To convert centimeters to meters, you divide by 100 since there are 100 centimeters in a meter. Therefore, 20cm divided by 100 equals 0.2 meters.
It is 5%
5 times 20cm = 1 meter
20cm divided by 2N means it creates the pressure of 10Ncm2
20cm
0.2
volume 20cm 30cm 20cm
20cmx 20cm x20cm
It is 1/5