# Question: the radius of the small circle is 31cm the radius...

###### Question details

The radius of the small circle is =3.1cm.

The radius of the large circle is =9cm.

Find the value of the shaded annulus

The area is ______ cm^{2}

The radius of the small circle is =3.1cm.

The radius of the large circle is =9cm.

Find the value of the shaded annulus

The area is ______ cm^{2}