Surface Areas and Volumes

Bihar Board Class 10 · Mathematics · 50 past questions

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1. Q7 2025

   The ratio of the volumes of two spheres is 64 :125. Then the ratio of their surface areas is

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2. Q8 2025

   The radii of two cylinders are in the ratio 4 : 5 and their heights are in the ratio 6 : 7. Then the ratio of…

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3. Q9 2025

   What is the total surface area of a hemisphere of radius $R$ ?

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4. Q10 2025

   If the curved surface area of a cone is 880 cm$^2$ and its radius is 14 cm, then its slant height is

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5. Q11 2025

   If the length of the diagonal of a cube is $2\sqrt{3}$ cm, then the length of its edge is

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6. Q12 2025

   If the edge of a cube is doubled then the total surface area will become how many times of the previous total…

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7. Q13 2025

   The ratio of the total surface area of a sphere and that of a hemisphere having the same radius is

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8. Q14 2025

   If the curved surface area of a hemisphere is 1232 cm$^2$ then its radius is

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