Two cubes have their volumes in the ratio 1 : 27. Find the ratio of their surface areas.
Let their edges be a and b. Then,
a3/b3 = 1/27 (or) (a/b)3 = (1/3)3 (or) (a/b) = (1/3).
\Ratio of their surface area = 6a2/6b2 = a2/b2 = (a/b)2 = 1/9, i.e. 1:9.
View Answer Report Error Discuss
The source of energy of the sun is
The transformation of Hydrogen atoms into Helium atoms with an emission of vast amount of energy is called nuclear fusion which is the source of energy for the Sun.
Who wrote a book describing the theory of economic drain of India during British rule
What is page cannibalizing?
Page swapping or page replacements are called page cannibalizing.
View answer Workspace Report Error Discuss
Which country’s new rules on drones, permit them to fly over people and at night in the country?
Improve the bracketed part of the sentence.
Even after 70 years of achieving independence, democracy, (in its true senses), was yet to come to India.
In known elements, the maximum number is of
Which are the special proteins in muscles that contract and relax to cause movement?