SOLUTION: The length of a radius of a circle is the same as the length of a side of a square. If the circumference of the circle is 15.96 centimeters longer than the perimeter of the squar

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Question 107162This question is from textbook Elemetary Algebra
: The length of a radius of a circle is the same as the length of a side of a square. If the circumference of the circle is 15.96 centimeters longer than the perimeter of the square, find the length of a radius of the cicle. (use 3.14 as an approximation for pi)
I know the answer is 7 centimeters but I would like to know how to set it up and solve it.
Thank you This question is from textbook Elemetary Algebra

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x=radius (and side of square)

the circumference of the circle is 15.96 centimeters longer than the perimeter of the square
...2(pi)(x)=4x+15.96