Question

The circumference of the square is 28 cm. How long is the radius of the circle? Explain how you think.

Answer 1

Given

The circumference of the circle is 28 cm.

Explanation

The circumference of the circle is determined as

`C=2\pi r`

Substitute the values

`\begin{gathered} 28=2\pi r \\ r=(28)/(2\pi) \end{gathered}`
`r=(14)/(\pi)=(14)/(3.14)=4.46cm`

Answer