Question

If the diameter of a circle is 46 centimeters long, how long is the radius of the circle?

Answer 1

The radius of a circle is half the length of the diameter.

So, if the diameter of a circle is 46 centimeters long, then the radius is 23 centimeters.

`\begin{gathered} r=D/2 \\ r=46cm/2 \\ r=23cm \end{gathered}`

The radius of the circle is 23 centimeters long.