Which of the following is not equal to 0.1 centimeters?

0.1 kilometers (km)
0.001 meters (m)
10 millimeters (mm)
1000 micrometers (µm)

c) 10 millimeters (mm)

Explanation:

The unit conversions are as follows:

1 cm = 10 mm (millimeter)

1 cm = 0.01 m (meter)

1 cm = 0.00001 km (kilometer)

1 cm = 10000 μm (micrometer)

Based on the above conversions:

Therefore, 0.1 cm = 10 mm is incorrect instead it is 0.1 mm