SOLUTION: Write a polynomial that represents the difference between the perimeter of a square and the circumference of a circle that have the same side length and diameter, represented by x.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Write a polynomial that represents the difference between the perimeter of a square and the circumference of a circle that have the same side length and diameter, represented by x.      Log On


   

Question 945074: Write a polynomial that represents the difference between the perimeter of a square and the circumference of a circle that have the same side length and diameter, represented by x. What is the difference when x is 9 inches? Use 3.14 for π.
Answer by josgarithmetic(39838) About Me  (Show Source):
You can put this solution on YOUR website!
x, both for the side length of square and diameter of circle.

4x-2pi%2Ar, using r for radius, and know that 2r=x, so r=x%2F2.
4x-2pi%28x%2F2%29
4x-2%28x%2F2%29pi
highlight%284x-pi%2Ax%29