You can find the area of this figure by finding the area of the square and then the area of the triangle. Once you find these 2 areas then add them together.
For the area of the square: A= b x h A = 4 cm x 6 cm A = 24 cm²
For the area of the triangle: A = b x h/2 A = 3 cm x 6 cm/2 A = 9 cm²