Question

give two precautions to be taken while measuring the length of a pencil using a scale​

Answer 1

1) Keep the ruler exactly along the length to be measured.

2)Avoid using worn out portions of the ruler.

3)Keep the eye vertically above the point where the measurement is to be taken.

Answer 2

1. Make sure you don't get poked by the pencil

2. Make sure that the point of the scale is in 0 cm