You want to separate the figure where the lines are to form 3 shapes, 2 triangles and 1 rectangle. The area of the rectangle is ( 18x18=324m). The area of the triangle below the rectangle is (18x16) divided by 2. Which equals 144. The other triangle is (8x16) divided by 2. Which is 64. Now that you have the areas of the 3 figures you add them together (64+144+324) the answer would be 532. The area of the figure is 532m.