The composite image given in the question is a combination of a square and a triangle
To get the total area given, we will find the areas of both figures and then find the sum.
The area of the triangle is given by
[tex]\text{Area = }\frac{1}{2}\text{ x Base X Height}[/tex]Base = 70 cm, Height = 80 cm
The area of a triangle is given by
[tex]A\text{ = }\frac{1}{2}\times70\times80=2800cm^2[/tex]The area of the square is given by
[tex]Area=length\times breadth=110x130=14300cm^2[/tex]Area of composite figure =
[tex]\begin{gathered} \text{Area of square + Area of triangle} \\ \\ =\text{ 14300 + 2800} \\ \\ =17,100cm^2 \end{gathered}[/tex]