Question

What is the radius of a circle with a
circumference of 26.69 centimeters?

Answer 1

Explanation:

`c = 2\pi \: r \\ 26.69 = 2\pi \: r \\ r = 26.69 / 2(3.14) \\ r = 4.25 \: cm`

Answer 2

4.25 cm

Explanation:

Circumference of a circle = 2πr (where r is the radius)

`\implies 26.69=2 \pi r`

`\implies r=(26.69)/(2\pi )`

`\implies r=4.247845431...`

`\implies r=4.25\:\textsf{cm (nearest hundredth})`

Using
`\pi=3.14`:

`\implies r=(26.69)/(2 \cdot 3.14)=4.25\: \sf cm`