Answer:
A ≈ 43.7 cm²
Explanation:
The shaded area (A ) is calculated as
A = area of outer circle - area of inner circle
= π × 4.1² - π × 1.7²
= π (4.1² - 1.7²)
= π (16.81 - 2.89)
= π × 13.92
≈ 43.7 cm² ( to 3 significant figures )
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