Mathematics · Area and Perimeter
A ring is formed between two concentric circles. If the radius of the inner circle is 17.5 cm and the area of the outer circle is 1386 cm2, then what is the width of the ring?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13.6 cm
- 23.1 cm
- 33.2 cm
- 43.5 cm✓
Correct answer
3.5 cm
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