Answer: 65.1 cm²
Explanation:
First, we will find the area of the rectangle.
A = LW
A = (8 cm)(5 cm)
A = 40 cm²
Next, we will find the area of the rounded portion. We will assume this is a semi-circle and half the area of a circle.
The radius, r, is equal to 8 cm / 2 = 4 cm.
A =
(πr²)
A =
(π(4 cm)²)
A ≈
(50.265 cm²)
A ≈ 25.1325 cm²
A ≈ 25.1 cm²
Lastly, we will add these two final area values together.
40 cm² + 25.1 cm² = 65.1 cm²