The diameter of a solid hemisphere is 35 cm. What is its total surface area? (Take $π =\frac{22}{7}$)
Answer & explanation
Correct answer: option 2
We know that,
Total Surface area of the hemisphere = 3πr2.
We have,
Diameter of the solid hemisphere = 35 cm.
Then the radius = \(\frac{35}{2}\)
T.S.A of the hemisphere = 3 × \(\frac{22}{7}\) × (\(\frac{35}{2}\))2 = 2887.5 cm2