Answer:
6 centimeter = 60 millimeter
Step-by-step explanation:
1 meter = 100 centimeter
1 centimeter = 0.01 meter
Thus, 6 × 1 centimeter = 6 × 0.01 meter
6 centimeter = 0.06 meter
Hence, first option is wrong.
1 centimeter = 10 millimeter
6 × 1 centimeter = 6 × 10 millimeter
6 centimeter = 60 millimeter
Thus, third option is correct.