Question 1208226

the area of sheet of paper {{{42cm}}} by {{{66cm }}}is
 
{{{42cm*66cm=2772cm^2 }}}


the area of a circle of {{{7cm}}} radius is

{{{r^2*pi=(7cm)^2*pi=153.9cm^2}}}


the number of circles will be  {{{2772cm^2 /153.9cm^2=2772 /153.9=18.01169590643275=18}}}

so,  the maximum number of circles that can be cut out from the paper is {{{18}}}