Mensurationmedium · Past Paper
Find the volume of the material of a hollow sphere whose outer and inner radii are 10 cm and 8 cm respectively.
A488/3 π cm³
B1952/3 π cm³
C244π cm³
D1000π cm³
✓ Correct Answer: B — 1952/3 π cm³
Vol = 4/3 π (R³ - r³) = 4/3 π (1000 - 512) = 4/3 π (488) = 1952/3 π cm³.
Share this question
More from Mensuration
- Which solid has the formula 4πr² for its surface area?
- What is the area of a square whose perimeter is same as a circle of area 154?
- A square and an equilateral triangle have the same perimeter. What is the ratio of their areas?
- If the length of each edge of a cube is doubled, how many times does the volume increase?
- A road roller is cylindrical in shape. If its diameter is 1 m and length 1.4 m, what is the area it covers in 500 revolutions?