h=8 in
Area of each rectangle = 12 and 3/8 squared inches.
a)The area of the glass panel is the area of the trapezoid minus the area of the rectangles. The area of a trapezoid is calculated as the following:
[tex]\text{area}=\frac{1}{2}(base1+base2)\cdot\text{height}[/tex]This is the height times 1/2 times the sum of the top edge plus the bottom edge
b)The area of the rectangles is the sum of both of them:
[tex]12\frac{3}{8}+12\frac{3}{8}=24\frac{6}{8}=24\frac{3}{4}=24.75in^2[/tex]The area of the trapezoid is:
[tex]\text{area}=\frac{1}{2}\cdot(16.25+28.25)\cdot8=178in^2[/tex]c) Let's say G is the area of the glass panel we must find, this equals to the area of the trapezoid minus the area of the rectangles:
[tex]G=178-24.75[/tex]d) G is then:
[tex]G=178-24.75=153.25in^2[/tex]
