Perimeter and A...

The radius of a circle is increased by $$5$$ units. What is ratio of the new circumference and the new diameter?

If circumference of a circle is $$\displaystyle 3\pi $$, then its area is

$$ \displaystyle \frac{1}{5}\, of\,10 km=   $$ _____m

A wall is made up of square bricks of unit length. Then its area is _____

Area of a rectangle is $$120 $$ $$m^2$$ and the breadth is $$5 m$$ . Then its length is

A figure is formed by putting two squares one on the other as shown below. If the length of each side of the two squares is $$8$$ cm, then the perimeter of the formed figure is

The total boundary length of circle is called

Circumference of a circle is equal to

The circumference of a circle is called 

The ______ of a circle is called the circumference.