Math, asked by Chaurasiya1, 1 year ago

A circle has a radius of 7 cm .find its area.if its area becomes four times the previous area.find the radius of the new circle

Answers

Answered by shiwank
2
ye h mera answer 100%sahi hai
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Answered by Immortalharry
3
R=7cm
Area=22/7*7*7
22*7=154

If it is four times
154*4=616
New area=22/7*r*r
616*7/22=r*r
196=r*r
14=r
Radius of new circle =14
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