Question

precautions to be taken while measuring length

Answer 1

Answer:

Explanation:

Care should be taken to keep the ruler along the length of the object. If the edge of the ruler is worn out or broken, the measurement should be started from any other mark that is fully clear. Eyes should be exactly above the point where the measurement is to be taken.

Answer 2

Answer:

You must take the following precautions while using various instruments for measuring length :

The scale should be place along the length to be measured. Your eye must be in front of and in line where the measurement is to be taken. Ensure that the ends of the scale are not worn-out