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Assume Ď, unless sind the surface area of a sphere of radius(i) 5.6c(i)10.5 cm |
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Answer» i)4 pi r² = 4 × 3.14 × (10.5)² = 1,384.74 cm² ii) 4 pi r² = 4 × 3.14 × (5.6)² = 393.8816 cm² |
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