Question

While measuring the length of a wooden plank, Manu started the
measurement with his metre scale with a broken end starting from the mark
4cm .The final reading is 45 cm .what is the length of the wooden plank?Suggest
two precaution for him to make his measurement accurate.

Answer 1

Answer:

The precautions to be taken while using a meter scale to measure lengths are as follows : (1) The scale should be placed to the side of the object being measured. It should also be in touch with the object being measured. (2) While reading the scale, eye must be placed vertically above the scale mark being read.

Explanation:

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