Mensurationhard · Past Paper
Find the volume of a sphere whose surface area is 154 cm^2.
A179.67 cm^3
B1437.33 cm^3
C539 cm^3
D308 cm^3
✓ Correct Answer: A — 179.67 cm^3
4πr^2 = 154 → r = 3.5. Volume = (4/3)*(22/7)*(3.5)^3 ≈ 179.67 cm^3.
Share this question
More from Mensuration
- A square is inscribed in an equilateral triangle of side 12 cm. Find the area of the square.
- A metallic sphere of radius 10.5 cm is melted and recast into small cones of radius 3.5 cm and height 3 cm. This question relates to volume, but what is the total surface area of the original sphere?
- How many square tiles of side 2 cm are needed to cover a square floor of side 10 cm?
- What is the area of a sheet needed to make an open cylinder (no top) with radius 'r' and height 'h'?
- A cone and a cylinder have same radius and same height. If the volume of the cone is 50 cm^3, what is the volume of the cylinder?