Answer:
204 square yards
Step-by-step explanation:
We need to find the area of the whole trapezoid and then subtract the area of the rectangle from that.
The area of a trapezoid is denoted by: [tex]A=\frac{(b_1+b_2)*h}{2}[/tex], where b1 and b2 are the bases and h is the height. Here, the bases are 25 and 12 + 3 = 15, while the height is 12. So plug these values in:
[tex]A=\frac{(b_1+b_2)*h}{2}[/tex]
[tex]A=\frac{(25+15)*12}{2}=240[/tex] square yards
The area of a rectangle is A = lw, where l is the length and w is the width. Here the length is 12 and the width is 3, so the area is 12 * 3 = 36 square yards. Subtract this from the total 240:
240 - 36 = 204
The area of the shaded region is 204 yd squared.