Respuesta :
The circumference of a circle can be obtained using the formulae
If the radius of the circle is given:
[tex]C=2\pi r[/tex]If the diameter of the circle is given:
[tex]C=\pi D[/tex]From the first circle given
The radius (r) is given to be = 11.5m
Hence, the circumference of the circle is
[tex]C=2\times\pi\times11.5=72.26[/tex]Hence, c = 72 meters
For the second circle
We were given the diameter of the circle = 12m
Hence, the circumference of the circle is
[tex]C=\pi D=\pi\times12=37.69m[/tex]Hence, c = 38 meters
For the third circle
The radius of the circle = 24m
Hence, the circumference of the circle is
[tex]C=2\pi r=2\times\pi\times24=150.79m[/tex]Hence, c = 151 meters
