document.write( "Question 230794: A semicircular window of radius 16 inchesis to be laminated with a sunblock coating that costs $0.65 per square inch to apply. What is the total cost of coating the window, to the nearest cent? (Use the Area of a Circle and Pi = 3.14) \n" ); document.write( "
Algebra.Com's Answer #170920 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A semicircular window of radius 16 inches is to be laminated with a sunblock coating that costs $0.65 per square inch to apply. What is the total cost of coating the window, to the nearest cent? (Use the Area of a Circle and Pi = 3.14) \n" ); document.write( "-------------- \n" ); document.write( "Area = pi*r^2 \n" ); document.write( "Semi-Area = (1/2)pi*r^2 \n" ); document.write( "SA = (1/2)(3.14)*8^2 = 100.48 sq.in. \n" ); document.write( "------------------------------------ \n" ); document.write( "Cost = 0.65*100.48 = $65.31 \n" ); document.write( "================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |