Question 163989
Since it is a SEMI circle the area is: (half a circle)
{{{(pi)r^2/2}}}
plugging in our values
{{{(3.14)15^2/2}}}
{{{(3.14)225/2}}}
{{{706.5/2}}}
{{{353.25}}} square inches (area of semicircle window)
.
Now, we multiply the area (above) by cost per inch:
{{{353.25 * 0.85}}}
{{{300.26}}} 
That's $300.26 for the coating.