Question 761857

The circumference of the tower is your {{{10}}} meters; we need to find a radius
{{{2r*pi =10m}}}
{{{r=10 m/2pi}}}
{{{r=5m/3.14}}}
{{{r=1.59m}}}

a fence that surrounds a tower makes a circle that will have a radius of  {{{r1=r+2=1.59+2=3.59}}} meters (radius measured from the center of the tower), and will have a circumference of:

 {{{2r1*pi = 2*3.59*3.14= 22.55m}}} which is the length of a fence