Volume of a hemisphere $= \ldots \ldots$

  • A
    $\frac{2}{3} \pi r^{3}$
  • B
    $3 \pi r^{2}$
  • C
    $2 \pi r^{2}$
  • D
    $\frac{4}{3} \pi r^{3}$

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Similar Questions

$A$ metallic cylinder with diameter $1 \, cm$ and height $4 \, cm$ is melted and recast to produce balls of radius $\frac{1}{8} \, cm$. Find the number of balls produced.

The radius and height of a cylinder are $1.4 \, cm$ and $10 \, cm$ respectively. Then,its curved surface area is $\ldots \ldots \ldots \, cm^2$.

$1 \, m^3 = \dots \text{liters}$

$A$ cylinder is closed at both the ends by hemispheres. The radius of the cylinder is $7 \, cm$ and the total height of the article is $34 \, cm$. Find the total surface area of the article. (in $cm^2$)

$A$ metallic sphere with radius $6 \, cm$ is melted and recast into a wire of radius $0.4 \, cm$. Find the length of the wire in metres.

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