How can you measure the required volume of water using a graduated cylinder?

How can you measure the required volume of water using a graduated cylinder? How should the observer’s eye be positioned relative to the plane of the water in the cylinder?

The graduated cylinder is marked with divisions indicating the volume of liquid.
When measuring a liquid, the observer’s eye should be in the same plane with the liquid level, and the division line should be opposite the lower meniscus of the liquid level.

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