A square with corners at A(2, 1), B(9, 1), C(9, 8), and D(2, 8) if rotated 180 degrees counterclockwise about the origin will produce image A'( -2,-1), B'(-9, -1), C'(-9,-8), D'(-2, -8).
First you get the area of the blue rectangle without the blue triangle that is connected on the right, which is 10 x 14 = 140 m. You can see that the triangle's point is at the middle, so the red triangle would be (6 x 5) / 2 = 15. If the red triangle is 15, the blue "triangle" (it is connected to the rectangle) would be 30 m, bc it = two red triangles. Add the rectangle and triangle together 140 + 30 = 170