Question 1040005
The area of a trapezoid with
bases {{{b[1]}}} and {{{b[2]}}} ,
and height {{{h}}} is
{{{area=(b[1]+b[2])*h/2}}} .
In this case, the area in square feet is
{{{(100+80)*60/2=180*60/2=5400}}} .
The cost to cover with grass 5400 square feet at $0.35 per square foot is
{{{5400*("$ 0.35")="$1990"}}} .