Research work:
can we say that the circumference of a circle is in direct or inverse variation with its radius? verify with examples
also find out the relation between area and radius of the circle.

Step-by-step explanation:

The circumference of a circle is equivalent to its outer boundary. The circumference of a circle is given by :

.............(1)

r is the radius of circle

It is clear from equation (1) that the circumference of circle is directly proportional to its radius. For example, if the radius of circle is 2 cm, its circumference would be .

On increasing the radius i.e. 4 cm, circumference becomes .

The relationship between the area and the radius of circle is given by :

r is the radius of circle

Hence, this is the required solution.

unless if u could do my questions, if not i wouldn't want to