document.write( "Question 1117039: An arrow-shaped window is topped with a triangular sheet of yellow glass. The triangle is 4 feet 2 inches on the top sides with a height of 3 feet 4 inches. The base of the arrowhead is a rectangular sheet of thick opaque glass that is 3 feet 9 inches where it joins with the arrowhead and 5 feet 3 inches tall.
\n" );
document.write( "Calculate the area and perimeter of the window. \n" );
document.write( "
Algebra.Com's Answer #732145 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "The rectangular base of the window is a rectangle 45x63 inches, with an area of 2835 square inches. \n" ); document.write( "The triangular arrowhead can be viewed as two right triangles, each with hypotenuse 50 inches and one leg 40 inches -- making the other leg 30 inches. So the base of the triangular arrowhead is 30+30=60 inches; the area is one-half base times height, or 30*40 = 1200 square inches. \n" ); document.write( "So the total area of the window is 2835+1200 = 4035 square inches. \n" ); document.write( "The part of the perimeter of the window that is on the rectangular part of the window is (63+63+45) = 171 inches. The part of the perimeter that is on the triangular part is (50+50+(60-45)) = 115 inches. \n" ); document.write( "So the perimeter of the window is 171+115 = 286 inches. \n" ); document.write( " |