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
Total area = 24 cm² + 9cm²
Total area = 33 cm²