Final answer:
To prevent parallax error, you must look straight at the meter scales when reading measurements on an analog multimeter.
Step-by-step explanation:
When you read measurements on an analog multimeter, you must look straight at the meter scales to prevent parallax error.
Parallax error occurs when the position of your eye affects the reading on the meter scales. This happens because the needle on an analog multimeter appears to move depending on the angle you view it from. By looking straight at the meter scales, you minimize the parallax error and obtain more accurate measurements.