Respuesta :

all you have to do is multiply 45 by Pi= 45 x 3.14
bookishfairy73
The formula to find Circumference is: C = Pi x D (Pi is 3.14 and D is Diameter). Hence, 3.14 x 45 = 141.3 cm.  The answer is 141.3 cm.
The circumference of a circle is Π*d.


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