Mensurationmedium · Past Paper
A cylinder has a volume of 1540 cm^3 and height 10 cm. Find its radius.
A7 cm
B14 cm
C3.5 cm
D10 cm
✓ Correct Answer: A — 7 cm
1540 = (22/7)*r^2*10 → 154 = (22/7)r^2 → r^2 = 49 → r = 7 cm.
Share this question
More from Mensuration
- If the surface area of a sphere is 616 cm², find its radius.
- What is the area of a segment of a circle of radius 10 cm, if the chord subtends a right angle at the center? (pi=3.14)
- Percentage increase in area of circle if radius is increased by 100% is:
- A cone is cut by a plane parallel to the base at the midpoint of its height. Find the ratio of the volume of the upper cone to the original cone.
- What is the volume of a pyramid with a rectangular base of 10 cm by 6 cm and height 5 cm?