Question 1148555
For a circle:
{{{ A = pi*r^2 }}}
For a semi-circle:
{{{ A = (1/2)*pi*r^2 }}}
{{{ r = 10/2 }}}
{{{ r = 5 }}} ft
{{{ A = (1/2)*pi*5^2 }}}
{{{ (1/3)*A = (1/6)*pi*25 }}}
{{{ (1/3)*A = 13.09 }}}
13.09 ft2