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