You can place a string around the head, and then measure the string. Or measure directly with a measuring tape, if you have one that is flexible enough (basically, a measuring tape made up of cloth or something similar).
It has a circumference of 333.01 feet.
The circumference of a circle with radius measuring 28cm is about 175.9cm (C = r x 2 x Pi).
Measure it with a measuring tape.
what is the average head circumference of a 5 year old boy
Because it is difficult to wrap a metre ruler around someone's head.
I would use a measuring tape because it is easier to wrap it around a baby's head.
A measuring tape is flexible - a metre rule isn't !
You can place a string around the head, and then measure the string. Or measure directly with a measuring tape, if you have one that is flexible enough (basically, a measuring tape made up of cloth or something similar).
It has a circumference of 333.01 feet.
The circumference of a circle with radius measuring 28cm is about 175.9cm (C = r x 2 x Pi).
Measure it with a measuring tape.
To measure the distance around your head, place a flexible measuring tape around your head just above your eyebrows and ears. Make sure the tape is snug but not tight, and note the measurement in inches or centimeters. This is your head circumference.
Head circumference of 3 year old?
Because the diameter is a straight line.
You can place a flexible measuring band around the head. As an alternative, you can place some other flexible object, such as a string, around the head. Then you can measure it with a meter stick.
HC on an ultrasound means Head Circumference.