An annular iron sheet has an outer diameter of 1 decimeter and a ring width of 2 cm. What is the area of the annular iron sheet in square centimeter? emergency
The outer circle is 10 cm in diameter and 5 cm in radius
The inner circle is 6cm in diameter and 3cm in radius
What is the area of the iron sheet
π × 5 × 5 - π × 3 × 3 ≈ 50.24 square centimeter
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