# Answer to Question #22642 in Quantitative Methods for Joshena

Question #22642

if diameter of circle is increased by 40% ,then its area increases by ? solve it free

Expert's answer

The formula for the area of a circle is S

increasing.

After increasing the diameter will be 1.4d and the area will be :

S

Then the area of circle increased by 96%

_{0}=(Pi*d^2)/4,where d is the diameter of circle and Pi=3.14, S_{0}- area of circle beforeincreasing.

After increasing the diameter will be 1.4d and the area will be :

S

_{1}=(Pi*(1.4d)^2)/4=(1.96Pi*d^2)/4=1.96S_{0}Then the area of circle increased by 96%

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