Final answer:
The diameter of a quarter in millimeters is approximately 24.273 mm.
Step-by-step explanation:
The diameter of a quarter in inches is 0.955 inches. To convert this to millimeters, we can use the conversion factor: 1 inch = 25.4 millimeters.
Multiplying the diameter of the quarter in inches (0.955) by the conversion factor (25.4), we get:
Diameter in millimeters = 0.955 inches * 25.4 mm/inch = 24.273 mm (approximately).
Therefore, the diameter of a quarter in millimeters is approximately 24.273 mm.