Explanation:
A. Circle = πr²
A. half circle = 1/2 πr²
A. Rectangle = w × l
we know that
w = d = 8 ft
r = 1/2 d
= 1/2 × 8
= 4 ft
l = 10 ft
π = 3.14
Total area = A. Circle + A. rectangle
= 1/2 πr² + w × l
= (1/2 × 3.14 × (4)²) + 8 × 10
= (1/2 × 3.14 × 16) + 80
= 3.14 × 8 + 80
= 25.12 + 80
= 105.12 ft
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