Question

Tania has a set of nesting rings. This table shows the relationship between the radius of a ring and the ring's circumference.

What is the circumference for the nesting ring with a 9.5 cm radius?

Answer 1

The circumference is 59.66 cm

Explanation:

Answer 2

The circumference is 59.66 cm

Explanation:

we know that

The circumference of a circle (ring) is given by the formula

`C=2\pi r`

If the radius is

`r=9.5\ cm`

substitute in the formula

`C=2\pi (9.5)`

`C=19\pi\ cm` ----> exact value

assume

`\pi =3.14`

substitute

`C=19(3.14)=59.66\ cm`