Find the surface area of each the following figure
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Sol'n: Radius (r) = 7cm
π = 22/7
(i) Surface area of the sphere
= 4πr²
= 4 × 22/7 × 7 × 7
= 616cm²
(ii) Surface area of hemisphere
= 3πr²
= 3 × 22/7 × 7 × 7
= 462cm²
Hope it'll help...:)
π = 22/7
(i) Surface area of the sphere
= 4πr²
= 4 × 22/7 × 7 × 7
= 616cm²
(ii) Surface area of hemisphere
= 3πr²
= 3 × 22/7 × 7 × 7
= 462cm²
Hope it'll help...:)
Bianchi:
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formula of surface of the sphere
[tex]4\pi {r}^{2} \\ = 4\pi {7}^{2} \\ 616 cm^2
[tex]4\pi {r}^{2} \\ = 4\pi {7}^{2} \\ 616 cm^2
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