Question

Find the radius of a circle if the diameter is $21cm$

Answer 1

Given that

Diameter =$21cm$

As we know that, $\mathrm{Radius}=\frac{\mathrm{Diameter}}{2}$

So, $\mathrm{Radius}=\frac{21}{2}$

$\mathrm{Radius}=10.5\mathrm{cm}$

Hence, the Radius of the circle is $10.5\mathrm{cm}$.