Question
The cross sectional area of a hemisphere is 2772 cm²
and its volume is 19404 cm³. What is its radius?Solution
As we know, Volume of hemisphere = (2/3) πr3 (2/3) πr³ = 19404 --- (1) The curved surface area of the hemisphere = 2 πr² 2 πr² = 2772 … (2) Dividing (1) by (2), [(2/3) πr³]/ [2 πr²] = 19404/2772 r/3 = 7 r = 21 cm
Has the car been cleaned by the driver?
- Select the option that correctly expresses the given sentence in passive voice.
The teachers of our school have already taken this training.
... Choose the option that is the passive form of the sentence.
The tennis ball hit Dhiraj on the head.
Select the option that expresses the given sentence in passive voice.
The invigilator is advising the students not to carry calculators into the ...
At the drop of a hat
Select the option that expresses the given sentence in passive voice.
People claim to have seen the wild and mad elephant in several cities...
Select the correct active form of the given sentence.
The light was switched off by her before sleeping.
Sentence has been given in Active Voice. Out of the four alternatives suggested select the one which best expresses the same sentence in Passive Voice....
Sentence has been given in Active Voice. Out of the four alternatives suggested select the one which best expresses the same sentence in Passive Voice....
The shopkeepers were told (A)/by the police that (B)/goods were being selled(C)/by them at higher prices (D).
