Need help with Algebra problem

Algebra
Tutor: None Selected Time limit: 1 Day

the problem is a equals pie times r squared iv tried to figure it out but im stumped could you please help me solve for r 

Oct 28th, 2015

Thank you for the opportunity to help you with your question!

given that a=3.14r^2;

we find the value of r by making r subject of the formula.

Dividing both sides of the equation by 3.14 gives,

r^2=a/3.14

the value of r is obtained from computing for the squareroots of both sides of the equation.

Hence r = √(a/3.14) or r is equal to the square root of (a/3.14).

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 28th, 2015

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Oct 28th, 2015
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