Divide the figure into two parts, a triangle and a square
TRIANGLE
the base (b) = 5 cm
the height (h) = 4 cm
Calculate the area of the triangle
a = 1/2 × b × h
a = 1/2 × 5 × 4
a = 20/2
a = 10
The area of the triangle is 10 cm²
SQUARE
the side (s) = 5 cm
Calculate the area of the square
a = s²
a = 5²
a = 25
The area of the square is 25 cm²
THE AREA OF THE FIGURE
a figure = a of triangle + a of square
a figure = 10 + 25
a figure = 35
The area of the figure is 35 cm²