The total surface area of a closed hemisphere is 16632 cm³. What is the sum of the radius and the diameter of this hemisphere? [Use π = $\frac{22}{7}$]

126 cm

We know that,

Volume of solid hemisphere = \(\frac{22}{7}\)πr³

Total surface area = 3πr²

We have,

TSA of Hemisphere = 16632 cm²

Now, according to the question,

= 3 × \(\frac{22}{7}\) × r² = 16632

= r² = 1764 

= r = 42 cm

Now, the sum of the radius and diameter = 42 + 2 × 42 = 126 cm