Let's say that the two objects have 5 centimeters and 7 centimeters of diameter.
The circumference of a circle is defined as
![C=\pi d](https://img.qammunity.org/2023/formulas/mathematics/high-school/4mkash3xbv1k0yoiexwvsolvp2d8x0dvan.png)
Where d is the diameter. Using the measures above, we have
![C_1=\pi(5cm)\approx5\cdot3.14\operatorname{cm}\approx15.7\operatorname{cm}]()
![C_2=\pi(7\operatorname{cm})=7\cdot3.14\operatorname{cm}=21.98\operatorname{cm}]()
Therefore, the circumferences of the measures obtained are 15.7 and 21.98 centimeters.