Mensurationhard · Past Paper
The lateral surface area of a cylinder is 94.2 sq. cm and its height is 5 cm. Find the radius of its base. (Use π = 3.14)
A3 cm
B2 cm
C4 cm
D5 cm
✓ Correct Answer: A — 3 cm
2πrh = 94.2. 2 * 3.14 * r * 5 = 94.2. 31.4 * r = 94.2. r = 3 cm.
Share this question
More from Mensuration
- A cylindrical tank of radius 7 m and height 10 m is full of water. If this water is poured into a rectangular tank of length 22 m and width 10 m, what will be the height of water?
- The area of a square is 100 sq. cm. What is its perimeter?
- What is the area of a parallelogram with a base of 10 cm and a vertical height of 8 cm?
- How many cubes of side 2 cm can be made from a solid cuboid of dimensions 10 cm x 8 cm x 6 cm?
- The base of a triangle is 4 times its height. If area is 50 sq. cm, find height.