Which method of measuring weight involves comparing a person's weight and height?

method of measuring weight involves comparing a person's weight and height is body mass index..( BMI)

Ideal Weight is uses weight and height to determine if one's current weight is appropriate.

Explanation:

An ideal weight chart allows doctors to use a scale of height and weight to determine if one's weight is appropriate relative to their height.  In general, this method is relatively accurate.  As a matter of fact, it is often used by insurance companies to determine if an individual has maintained a healthy weight. However, some individual's body types can make a height and weight comparisons an inaccurate method. For instance, if a person has a large muscle mass due to a weight lifting program, the ideal weight chart might indicate that they are over weight, as muscle tissue is heavier than fat.

tell their parents and make sure she gets from a counselor or therapist. be supportive and be there for her. be a kind and good friend. spend time with her to make her feel like she's not alone. i'm not a professional but i really hope they stays strong.