document.write( "Question 152031: A triangular window of height 15 inches and base 21 inches is to be laminated with a sunblock coating that costs $1.22 per square inch to apply. What is the total cost of coating the window, to the nearest cent? (Hint: Area of Triangle: A = base*height/2 \n" ); document.write( "
Algebra.Com's Answer #111739 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Use the hint... \n" ); document.write( "A = base*height/2 \n" ); document.write( ". \n" ); document.write( "The problem gave the following information: \n" ); document.write( "height = 15 inches \n" ); document.write( "base = 21 inches \n" ); document.write( ". \n" ); document.write( "Calculate the area of the triangle by substituting in what we know into: \n" ); document.write( "A = base*height/2 \n" ); document.write( "A = 21*15/2 \n" ); document.write( "A = 21*15/2 \n" ); document.write( "A = 157.5 square inches \n" ); document.write( ". \n" ); document.write( "Since the coating costs $1.22 per square inch, multiply that with the area: \n" ); document.write( "157.5 * 1.22 = $192.15 \n" ); document.write( " \n" ); document.write( " |