# How do you measure diameter?

To measure the diameter of a circle you must measure the distance of a straight line that passes through the center of a circle with it's end points on the circle. The diameter of a circle will be the same from any two end points of a line that passes through the center. You can find more information here: http://www.mathopenref.com/diameter.html
Q&A Related to "How do you measure diameter?"
 To measure diameter of a circle, measure the length from one point to the exact opposite point. That number is called diameter. Half of that measurement is called Radius. http://www.ask.com/web-answers/Computers/Other/how...
 1. Measure the car wheel, including the tire. Start by getting the tire pumped up at the local gas station. This will help reduce the flattening at the bottom of the tire, which could http://www.ehow.com/how_5818367_measure-wheel-diam...
 a diameter is the whole measurement of a circle like if u where to find out the whole measurement of a ball 4 it 2 be a diameter it would have to measure the whole ball http://wiki.answers.com/Q/Measure+top+or+bottom+fo...