to make accurate measurements there are two main requirements. what are they?

to make accurate measurements there are two main requirements.what are they

To make accurate measurements , we must use appropriate instruments and know how to use these instruments properly

Hold the scale perpendicularly Look exactly from the top

To get accurate measurement we have to know how to measure lengths and how to use scale because agar hame scale use hi nahi karna aata to hum accurately measurement kese karenge

I suggest you to write my first answer in your book and notebook

Because my first answer is correct and l also write it in my notebook