Question

common lengths indicated on metric scales are __________. 3 and 6 millimeters 30 and 60 millimeters 30 and 60 centimeters 300 and 600 centimeters

Explanation:

Common metric - scale lengths are often in the range of 30 and 60 centimeters. 3 and 6 millimeters are too small for common scale - indicated lengths. 30 and 60 millimeters are also relatively small. 300 and 600 centimeters (3 and 6 meters) are too large for common metric - scale indications.

Answer:

30 and 60 centimeters