Respuesta :

The circumference of circle is [tex]56.52x^2[/tex] units

Solution:

Given that,

Radius of circle = [tex]9x^2[/tex] units

To find: circumference of circle

The circumference of circle is given as:

[tex]C = 2 \pi r[/tex]

Where, r is the radius of circle

Substitute, r = [tex]9x^2[/tex]

[tex]C = 2 \times 3.14 \times (9x^2)\\\\C = 6.28 \times 9x^2\\\\C = 56.52x^2[/tex]

Thus circumference of circle is [tex]56.52x^2[/tex] units