size 8
The diameter of a US nickel is 21.21 millimeters.The united states Nickel has a diameter of 21.21 mm or 2.2121 cm.
2.12 cm (or 21.2 mm)
A US one cent coin measures 19mm, or 1.9cm, in diameter.
A US nickel coin has a diameter of 2.121 cm and its thickness is 0.195 cm
size 11
it a size 6
The ring is 455 cm in diameter. It is centered on a square that is 670 cm on each side. The surface is hard packed clay.
Diameter = 2*Radius = 2 cm.
Diameter of ring=34.1/3.414=9.9cm ( approx 10 cm)
45 cm
size 8
sand because, sand ranges in size from .2 cm in diameter to .006 cm in diameter and clay's largest diameter is .0004 cm in diameter.
About 6.5 cm(in diameter i think)
The diameter of a US nickel is 21.21 millimeters.The united states Nickel has a diameter of 21.21 mm or 2.2121 cm.
The size of a boulder must be greater than 25.6 cm in diameter.
A US copper penny is exactly 2 cm wide.