SOLUTION: a sqaure has side s. the radius of a circle is two less than half the side of the square. a. write an expression for the radius of the circle in terms of s. b. find the circumfer

Algebra ->  Parallelograms -> SOLUTION: a sqaure has side s. the radius of a circle is two less than half the side of the square. a. write an expression for the radius of the circle in terms of s. b. find the circumfer      Log On


   



Question 99961: a sqaure has side s. the radius of a circle is two less than half the side of the square.
a. write an expression for the radius of the circle in terms of s.
b. find the circumference and the area of the circle in terms of pie if s = 12

Found 2 solutions by edjones, fastblue:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
a) (s/2)-2=r
b) r=12/2-2=4
C=2*pi*r=8*pi
A=pi*r^2=pi*16
Ed

Answer by fastblue(13) About Me  (Show Source):
You can put this solution on YOUR website!
a) r=(s/2)-2
b) C=2*(pi)*r
C=2*(pi)*4=25.13