Given, V = 1408 m³ and h = 7 m
We need to find 'r'. So, we plug the values into the formula:
1408 = πr² x 7
Divide both sides of the equation by 7π
r² = 1408 / (7π)
Using the approximation π ≈ 22/7
r² = 1408 / (7 x 22/7) r² = 1408 / 22 r² = 64
Take the square root of both sides:
r = √64 r = 8 m
Therefore, the radius of the base is 8 meters.
English
200 Questions
200 Marks
120 Mins English English20 Questions20 Marks15 Mins English English200 Questions200 Marks120 Mins EnglishThe curved surface area of a cylinder having radius 5 cm and height 23 cm is:
Water flows out through a pipe, whose internal radius is 3 cm, at the rate of x cm per second into a cylindrical tank, the radius of whose base is 60 cm. If the level of water in the tank rises by 15 cm in 5 minutes, then the value of x is:
If the ratio of radii of the bases of two cylinders is 4 : 5 and the ratio of their heights is 5 : 2, then the ratio of their volumes is:
Find the volume of a cylinder with radius 5 cm and height 21 cm (use π = 22/7).
If the height of a cylinder is 16 cm and radius is 14 cm, what is the curved surface area (in cm²) of it?
The ratio of the radii of two cylinders is 2: 3 and the ratio of their heights is 5: 3. What will be the ratio of their curved surfaces?
A cylindrical tank has a capacity of 4774 m³. If the radius of the base is 7 m, what is the depth? (Use π = 22/7)
Find the volume of a cylinder with radius of base 7 cm and height 10.2 cm. (Use pi = 22/7)
A cylindrical rod has an outer curved surface area of 5600 cm2. If the length of the rod is 92 cm, then the outer radius (in cm) of the rod, correct to two places of decimal, is: (Take π = 22/7)
The curved surface area of a right circular cylinder is 5280 cm2 and its base radius is 21 cm. Find the volume (in cm ) of the cylinder. (Take π = 22/7)
Suggested Test Series
Suggested Test Series
