Answer:
48.5 cm (C).
Explanation:
First, the area of the rectangle:
Length × width = 8 × 4 = 32cm²
Second, the area of the square:
Length × Length = 3 × 3 = 9cm²
Third area of the triangle:
To find the height:
8 - 3 = 5 cm
Base:
3 cm
½ × base × height = ½ × 3 × 5 = 15/2 = 7.5cm²
Now add all of them together:
32 + 9 + 7.5 = 48.5 cm²
48.5 cm² is the answer.