Circumference of the circle: 13*pi = 40.841 cm rounded up to 3 decimal places
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30 pi m
50.27 yards
tell what the diameter (d) and radius(r) of each circle is by using this information
The circumference of a circle if its radius is 13cm is: 81.68 cm
Diameter = Circumfrence/pi = 13/pi = 4.14 cm (approx)