1. If the radius of a circle is increased by 50%, its area is increased by





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  • By: anil on 05 May 2019 02.01 am
    Area of circle = $$pi r^{2}$$
    After increasing the radius by 50%
    New area of circle = $$pi (1.5r)^{2}$$
    Hence , the area increases by 125%
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