Mathematics · Mensuration
If the radius of a sphere is increased by 3.5 cm, its surface area increases by 550 cm2. What was the original radius of the sphere? (use π = 227)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13.5 cm
- 24.5 cm✓
- 36 cm
- 44 cm
Correct answer
4.5 cm
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