Question 835336
The length of a rectangle is twice as long as the radius of a circle. You want the area of the rectangle to equal the area of the circle. 

a) in terms of the circle's radius, find the width of the rectangle. write the answer in simplified form. 

Area of circle = {{{pi*r^2}}}
width of rectangle = (Area of circle)/(Length of rectangle)
                   = {{{pi*r^2/2r}}} 
                   = {{{highlight(pi*r/2)}}} 


b)Find ratio of radius of the circle to the width of rectangle

ratio = {{{r/(pi*r/2)}}} = {{{highlight(2/pi)}}}