Question

What is the approximate length of the radius r?

Answer 1

4.5 cm

Explanation:

The formula to find the radius of a circle is

`r=(c)/(2\pi )`

`r=(28.3)/(2\pi )`

`r=4.5 cm`

Answer 2

Circ = 2 x pi x r

28.3 = 2 x 3.14 x r

r = 28.3 / (2 x 3.14) = 4.51 cm

r = 4.5 cm

Explanation: