Question

The volume of a hemispherical shell of outer
radius 7 cm and inner radius 3.5 cm is​

Answer 1

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As we know ,

⭑volume of hemisphere :- 2/3πr³

⭑Let the inner radius be R2

⭑Outer radius be R1

Now,

$\implies \: \frac{2}{3}\pi(r1 - r2) {}^{3} \\ \\ \implies \: \frac{2}{3} \times \frac{22}{7} (7 - 3.5) {}^{3} \\ \\ \implies \frac{2}{3} \times \frac{22}{7} \times 3.5 \times 3.5 \times 3.5 \\ \\ \implies \: { \boxed{ \bf{ \pink{89.83 \: cm {}^{3} }}}}$

•°• Volume of hemispherical shell is 90 cm³ approx

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