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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