Correction for the size of a US Quarter
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How big is 652.04 square millimeters?
It's about one-and-two-fifths times as big as a US Quarter
The size of a US Quarter is about 462.20 square millimeters.
(United States quarter-dollar coin) (a.k.a. Quarter dollar, a.k.a. Washington quarter, a.k.a. two bits)
The George Washington quarter, in circulation in various forms since 1932, has a diameter of 24.26 mm (0.955 in) and an area of 462.2 sq. mm.