Mensurationhard · Past Paper
A solid is in the form of a cylinder with hemispherical ends. The total height of the solid is 19 cm and the diameter of the cylinder is 7 cm. Find the volume of the solid.
A641.67 cm³
B585.5 cm³
C720 cm³
D450 cm³
✓ Correct Answer: A — 641.67 cm³
Radius = 3.5. Height of cylinder = 19 - 7 = 12. Vol = πr²h + 4/3πr³ = π(3.5²)(12) + 4/3π(3.5³) ≈ 462 + 179.67 = 641.67 cm³.
Share this question
More from Mensuration
- If the area of an equilateral triangle is 9*sqrt(3) sq. cm, find its perimeter.
- A cylinder of height 12 cm and radius 3 cm is melted to form a cone of radius 3 cm. What will be the height of the cone?
- A leaf-like shape is formed by two quadrants of radius 7 cm intersecting within a square. What is the area of this leaf?
- Find the height of a cylinder if its volume is 308 cm^3 and radius is 7 cm.
- The diagonal of a square is 10 cm. What is its area?