document.write( "Question 1100102: Hi, I need help with this problem! \r
\n" ); document.write( "\n" ); document.write( "https://imgur.com/a/8IqmF
\n" ); document.write( "

Algebra.Com's Answer #714578 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
Area of rectangle (all of it) is 20cm*9cm=180 cm^2
\n" ); document.write( "Area of the triangle (not shaded) is (1/2)bh; base is 11 cm (20-5-4) and height is 9 cm, the width of the rectangle.
\n" ); document.write( "The area of the triangle is (1/2)*99=49.5 cm^2
\n" ); document.write( "The shaded area is 180-49.5=130.5 cm^2
\n" ); document.write( "
\n" );