Wed December 21, 2011 By:

Sir,my question to is: 1.)If the radius of a circle is increased by 100%, then by what percent is the area of the circle increased? 2)If diameter of a circle is increased by 40%, then its area increases by what percent?

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Wed December 21, 2011
We would request you to ask one question at a time. The answer to your first question is given below:
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