Question
A right circular cone is surmounted by a hemisphere. The
base radius of the cone is equal to the radius of the hemisphere. The diameter of the hemisphere is 12 cm while the height of the cone is 8 cm. Find the cost of painting the compound object if it costs ₹50 to paint a cm².Solution
Radius = 12 / 2 = 6 cm Since the right circular cone is surmounted on a hemisphere, the area of the base.  = 2 π ×62 = 72 π cm² Slant Height = √62 +√82 = 10 cm Hence, the total surface area of the cone is surmounted on the hemisphere. The curved surface area of the cone + the area of the base=π× 6 × 10 + 72π=132π Thus, the cost of painting the compound object = (50 × 132π) / π = 6600  The cost of painting the compound object is ₹6600.
Which of the following is NOT a common use of PHP?
Which functions are declared inside a class have to be defined separately outside the class?
Which of the following is NOT a common type of firewall?
If the destination MAC address is not found in the MAC address table, the switch forwards the frame out all of its ports except the port on which the f...
Which type of power plant produces electricity by harnessing the energy of falling or flowing water?
Which application layer protocol is primarily used for securely transferring files over a network?
B-trees and B+ trees are primarily used for efficient storage and retrieval of data in:
Which storage technology uses optical discs to store data and is commonly used for distributing software, movies, and music?
Which technique is used to address the issue of class imbalance in a classification task?
Which one of the following statements is FALSE?
Relevant for Exams:
