Height of first cone = 16.4 cm
Height of second cone = 17.2 cm
Radius of both sphere = 8.4 cm
Formula:
Volume of cone =
Volume sphere
Concept:
Total volume of cones = Volume of the sphere
Solution:
Then the diameter of sphere D = 2R = 2×8.4 = 16.8 cm.
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90 Mins English English100 Questions100 Marks90 Mins English English100 Questions100 Marks90 Mins EnglishThe curved surface area of a cylinder having radius 5 cm and height 23 cm is:
Nine identical cubes, each with edge 3 cm, are joined in a straight line to form a cuboid. What is the total surface area (in cm²) of the resulting cuboid?
The surface area of a cube is 480 Find its volume.
A cubical tank with side 50 cm is full of water. If 61 litres of water is taken out of it, the level of water in the tank will drop by:
The cost of polishing the total surface area of a solid cone at ₹ 0.50 per cm² is ₹ 5632, and the circumference of its base is 176 cm. What is the height of the cone? (Use π = 22/7)
The curved surface area of a solid metallic right circular cylinder is 1792π cm² and its base radius is 32 cm. It is melted and recast into 42 solid spherical balls of equal radius. What is the surface area (in cm²) of a ball ?
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:
Box A measures 20 cm by 5 cm by 4 cm and box B measures 16 cm by 5 cm by 3 cm. Based on this information, which one of the following statements is correct ?
Which of the following statements is wrong ?
A cuboid whose sides are 8 cm,9 cm and 24 cm is melted to form a new cube. What is the respective ratio of the total surface area of the cuboid and cube?
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