To find the circumference of a circle with a radius of 7cm, we need to use the next formula:
[tex]C=2\pi r[/tex]
We know that the value of π is approximately equal to 3.14159265359, and we also have that the radius is equal to 7cm. Then, we have that the circumference is:
[tex]C=2\cdot3.14159265359\cdot7\operatorname{cm}\Rightarrow C=43.9822971503\operatorname{cm}[/tex]
If we round this value to the nearest hundredth, we can conclude that the circumference of the circle is equal to 43.98cm.
In summary, we can say that the circumference of a circle with a radius of 7cm, and using π = 3.14159265359, and then rounding the value to the nearest hundredth is 43.98cm.
