Mathematics · Geometry
The area of a circle is increased by 66 cm2 when its radius is increased by 1 cm. What is the initial radius of the circle? (Use π = 227)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18 cm
- 29 cm
- 310 cm✓
- 410.5 cm
Correct answer
10 cm
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