What is radius?

The diameter of a circle is $20 \mathrm{cm}$. If the radius of the circle is $x \mathrm{cm}$, then write the value of $x$ in the answer box.

The radius of the bigger circle is _____$\mathrm{cm}$.

Radius of a circle $=$ _____ $\times$ Diameter. (Input answer in decimals)

We use _____ to draw a circle.

Draw the radius of this bangle using a ruler. Measure the length of the radius.

$O$ is the _____ of the circle.

Tick the circle with a longer radius.

Name the objects which can be used to measure the radii.

The distance between any point on a circle and the centre is called

Diameter of a circle is $21 \mathrm{cm}$. Then it’s radius is

Have you seen a tractor or a road roller? Which is the biggest wheel you have ever seen?

Are all wheels of a tractor or road roller of the same radius?

The radius of the smaller circle is _____$\mathrm{cm}$.