we will segment the sqaure in the shape into the following
full square,
0.75
0.5
0.25
full square = 68
0.75 = 18 x 0.75 = 13.5
0.5 = 5 x 0.5 = 2.5
0.25 = 17 x 0.25 = 4.25
to get the area of figure, we will add up the values that we have gotten
so,
Area of the figure = 68 + 13.5 + 2.5 + 4.25
Area of the figure = 88.25 square meter