Question 38

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Jambmaths question: 

A solid hemisphere has radius 7cm. Find the total surface area (Take $\pi =\tfrac{22}{7} )

Option A: 

400cm2 

Option B: 

462cm2

Option C: 

66cm2

Option D: 

308cm2

Jamb Maths Solution: 

$\text{Area of Hemisphere}=2\pi {{r}^{2}}=2\times \tfrac{22}{7}\times {{7}^{2}}=308c{{m}^{2}}$

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