Question 405293

A=πr^2


 What is the area of a circle that has a radius of {{{2x}}} and where π is approximately {{{3.14}}}? 

Write your answer in terms of {{{x}}}.


A=πr^2..replace {{{r}}} with {{{2x}}} and π with {{{3.14}}}

{{{A=(3.14)(2x)^2}}}

{{{A=(3.14)4x^2}}}

{{{A=12.56x^2}}}