Find the surface area of a sphere having radius 7 cm
1 616 sq.cm.
2 519 sq.cm
3 890 sq.cm
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Given
- Radius of sphere = 7cm
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To find
- Surface area of the sphere.
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Solution
- We have a sphere with radius of 7cm. Here, surface area of the sphere has been used.
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☆ TSA = 4πr²
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→ TSA = 4 × 22/7 × 7 × 7
→ TSA = 4 × 22 × 7
→ TSA = 28 × 22
→ TSA = 616cm²
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Hence,
- Surface area of the given sphere is 616cm².
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⇛ Formulas related to Volume and Surface area
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