Meters (m) are a larger unit than centimeters (cm), so the appropriate conversions to larger units are ...
d. 50 cm = 0.50 m
f. 7 cm = 0.07 m
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In the case of b, 108 cm = 1.08 m. The given number is incorrect. Conversions c and e are from larger units to smaller ones (and e is incorrect; it has the numbers backward). "a" is just flat wrong: 2 ≠ 200.
If "f" really has no units specified for .07, then it is incorrect, too.
the circumference would be around74.1197 but you can round it down depending on the decimal place needed. The math 437.4/3.14= 139.2993630573248 then find the quare root of it =11.80251511574227=r r x 3.14 =37.0598974634374 x 2 = c
