In 1828, the Diameter of the U

Multiple Choice

In 1828, the diameter of the U.S. dime was changed to approximately 18 mm. What is this diameter when expressed in nanometers

A) 1.8 * 10⁹ nm
B) 1.8 * 10⁷ nm
C) 1.8 * 10¹ nm
D) 1.8 * 10^-5 nm
E) 1.8 * 10^-10 nm