17.9mm is the diameter of a dime..705 inches 17.91 mm
A US dime's width or diameter is 0.705 inch.
The diameter of a dime is 0.705 inches. That's 0.05875 feet.
.705 inches (17.91 mm)
The radius is 0.3438".
The angular diameter of the full moon is about 0.5 degrees. To calculate the distance at which a dime would have the same angular diameter, you can use the formula: tan(angular size) = (diameter of object) / (distance). Plug in the values and solve for distance to find that you would need to hold the dime approximately 68 meters away from your eye.
The diameter of a US dime is approximately 0.001791 kilometers.
The diameter of a dime is 1.79 centimeters. This is .705 of an inch and 17.9 millimeters. A dime is the smallest piece of change in American currency.
I do not know the diameter of a US dime and, to be honest, do not care. However, for the benefit users of Answers.com, firstly, not everyone knows the size of a dime and secondly I do not for a moment believe a US coin would be 18 centimetres = 7 inches (approx) in diameter! <><><>><>><> 18 centimeters equals approximately 7.09 inches. My hand is of average size and it is about 18cm long.
dime -- 17.9 mm diameter, 1.35 mm thickness
The inches in a diameter = 2 X inches in the radius. Or, inches in a diameter = inches in circumference / pi
What is a "8 inch ball" ? Is 8 inches the diameter ? Then its diameter is 8 inches. Is 8 inches the radius ? Then its diameter is 16 inches. Is 8 inches the circumference ? Then its diameter is about 2.546 inches (rounded).