Question

Please help...metric system problem
Which of the following is not equal to 120 centimeters?
0.0012 kilometer (km)
0.012 dekameter (dkm)
1.2 meters (m)
1,200 millimeters (mm)

Answer 1

1 centi meter - 1/100 of a meter

so 120 cm = 1.2 meter, this one is correct

ok, so kilometer are thousand meters...we would have 1.2 of a thousand...or 0.12 of a hundred... or 0.0012, this one is also correct.

millimetres are a thousand of a meter. so 1.2 meter would be.... 1,200 mm, this one also seems to be correct.

deka sounds like ten... dekameter - 1/10 meter. so 1.2 meter would be 12 dekameter... they go into wrong direction...make it smaller not greater...and also by two magnitues of ten... I think this one is wrong

Answer 2

@mathessentials
yes I got 0.012 dekameter is the one that doesn't belong